In everyday life, the question is rarely asked, "What is conductivity?"
With the introduction of the SI system of units, "electrical conductivity" became the standard formal term, but in practice the word "conductivity" alone is often used.
Since conductivity is an indicator of how easily current flows through a solution, it depends on the amount of ions and their mobility in that solution.
Conductivity is a measure of how easily electricity can flow. In water, it is the ions that carry the current from one to another. That is, the more Na+ and Cl- there are in the water, the more current is carried, and the higher the conductivity. So if we know the conductivity of a salt water sample, we can calculate how salty the water is. (This is done when converting the salinity to get the value displayed by the Twin conductivity meter).
In summary, the following can be stated: Conductivity is a measure of the ability of a solution to conduct electric current. It is expressed as microsiemens (micro-Siemens per centimeter or µS/cm) or, in higher conductivity levels, as millisiemens. It is also the reciprocal of resistivity. Some industries, such as water treatment, have adopted a measurement known as TDS (Total Dissolved Solids). The TDS value is approximated to conductivity using a multiple factor and is expressed in parts per million (ppm).
An exemplary measurement of conductivity with a pocket tester can be found in the video link below: Pocket Tester Shop
HORIBA LAQUAtwin Conductivity Meter
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Compact conductivity tester for measurements in the medium-to-high conductivity range. Features automatic temperature compensation, a rugged design, and simple operation for laboratory, water analysis, and mobile applications. Milwaukee CD611 Conductivity Tester – Reliable, simple, and precise EC measurement The Milwaukee CD611 is a compact conductivity tester designed for the reliable measurement of electrical conductivity in water samples with medium-to-high conductivity levels. Its ease of use makes the device suitable for both regular spot checks and mobile field applications. Integrated automatic temperature compensation accounts for temperature fluctuations during measurement, ensuring consistent readings. This allows the tester to be used in various environments without the need for manual temperature corrections. Thanks to its rugged construction, the CD611 is built for daily use. Its compact size ensures easy portability, making it a practical solution for users who need quick measurement results directly on-site. Whether in the laboratory, during water analysis, or for routine checks in technical systems, the Milwaukee CD611 offers a straightforward way to monitor the conductivity of water samples. Technical Data Measurement parameter: Conductivity Measurement range: 0 to 20,000 µS/cm Accuracy: EC: ±2% of full scale Temperature compensation: Automatic Key Benefits at a Glance For conductivity measurements in the medium-to-high range Simple and convenient operation Compact design for mobile applications Rugged build for daily use Typical Applications Water analysis Laboratory applications Water treatment Process control Frequently Asked Questions How can I measure the EC value in water quickly and easily? Simply dip it into the sample, wait a moment, and read the value straight away. What can I use the EC Pen for? Ideal for plant care, hydroponics, aquariums and general water testing. Can I use it without any prior knowledge? Yes, the device is very straightforward and ready to use straight away. How accurate are the readings in everyday use? The readings are reliable and well suited for regular checks. How often should I calibrate the device? Regular calibration ensures consistently accurate results. For which liquids can I use the meter? It is suitable for many water-based solutions where conductivity needs to be tested. Can I read the values directly on the display? Yes, the display shows the measurement results clearly and legibly. Is the Milwaukee CD611 conductivity tester also suitable for use on the go? Yes, thanks to its compact design, it fits easily into any bag. How quickly do I get a measurement result? The reading is usually displayed within a few seconds. Who is the Milwaukee CD611 particularly suitable for? For anyone who wants to check conductivity values easily, quickly and reliably.
Frequently Asked Questions What does a TDS meter actually measure? A TDS meter measures the electrical conductivity of the water, which is caused by dissolved substances. This is used to calculate a value for the total amount of dissolved solids. It is important to note that the meter only indicates the quantity of dissolved substances, not their type or purity. A high TDS value therefore does not automatically mean that the water is contaminated or unhealthy – nor does a low value guarantee that the water is free from pollutants. Measurement range: 0 to 990 ppm (mg/l) What does TDS mean? What is ppm? TDS stands for Total Dissolved Solids – that is, the total amount of all dissolved solids in the water. These include minerals, salts, metals and organic substances dissolved in the water. The concentration of these dissolved substances is given in milligrams per litre (mg/L) or parts per million (ppm). Is it easy to use, even for beginners? Yes. Switch it on, dip it in the water and read the value straight away – no prior knowledge required. How accurate are the measurement results? For everyday use, the readings are reliable and provide a good indication of water quality. Can I use the tester when I’m out and about? Yes, the device is compact, lightweight and fits easily into any bag. Who would particularly benefit from buying this? Ideal for anyone who wants to check their water quality quickly and easily themselves.
This Nutrient Meter is designed for Hydroponics, horticulture and agriculture to help you make sure that your vegetables and plants are receiving the right amount of nutrient to promote healthy growth with low to zero product waste. Keep EC/TDS in your target range to help your achieve better results.- Readings are displayed with 20 LEDs graph bar- Range 0.2 to 4 mS/cm- The alarm feature is user settable and is displayed on the LED bar- No calibration required- Auto-ON/OFF function- The auto-check feature indicates the battery level- Waterproof and floating design makes the stick an appropriate tool for stirring nutrient solutions in a bucket/tank- Graphite EC probe with ATC
Waterproof multifunction meter for measuring conductivity, TDS, and temperature. Features automatic temperature compensation, a replaceable probe, and simple calibration for various applications. Milwaukee EC59 Waterproof Conductivity, TDS, and Temperature Meter – Precision and reliability for all water quality monitoring applications. The Milwaukee EC59 combines conductivity (EC), TDS, and temperature measurements into a single, compact handheld device. By integrating multiple measurement parameters, it is ideal for users who need to assess water quality quickly and easily without carrying multiple instruments. Automatic temperature compensation ensures reliable readings even when temperatures fluctuate. Additionally, automatic 1-point calibration allows for easy setup and regular accuracy checks, making the meter suitable for both beginners and experienced users. A key advantage of the EC59 is its replaceable electrode. The electrode can be swapped out if it wears down or performance declines, thereby extending the device's service life. Its robust, waterproof housing makes it a reliable tool for use in laboratories, greenhouses, or directly in the field. By simultaneously measuring conductivity, TDS, and temperature, the Milwaukee EC59 is suitable for a wide range of water quality monitoring and control applications. Technical Specifications Measurement parameters: Conductivity | TDS (Total Dissolved Solids) | Temperature Measurement range: 0 to 3999 µS/cm | 0 to 2000 ppm TDS | 0.0 to 60.0 °C (32.0 to 140.0 °F) Resolution: 1 µS/cm / 1 ppm / 0.1 °C / 0.1 °F Accuracy (EC/TDS/Temp.): 2% of full scale | +/-0.5 °C (+/-1 °F) Temperature compensation: Automatic Key benefits at a glance Measurement of conductivity, TDS, and temperature with a single device Waterproof housing for daily use Replaceable electrode for extended service life Compact and user-friendly design Ideal for portable and stationary measurements Typical applications Water treatment Aquaculture Hydroponics Laboratory applications Environmental analysis Frequently Asked Questions Can I use the device even if I have no prior knowledge? Yes, it is easy to use and the readings can be taken quickly. What can I actually measure with this tester? You can check the water quality based on conductivity, TDS value and temperature. Is the device suitable for outdoor use? Yes, the waterproof housing protects the device when used in damp environments. Will I need to replace the probe at some point? Yes, the probe is replaceable and can be replaced if necessary. How quickly do I get a measurement result? The measurement is taken within a few seconds of immersion in water. For which applications is the device particularly suitable? It is suitable for aquariums, hydroponics, swimming pools and many other water-related applications. Is the device compact enough for use on the go? Yes, thanks to its handy size, it fits easily into a bag or toolbox.
Waterproof multifunction meter for measuring conductivity, TDS, and temperature in high ranges. Features automatic temperature compensation, a replaceable probe, and a rugged design suitable for applications in aquaculture, industry, water treatment, and food production. Milwaukee EC60 waterproof high-range conductivity, TDS, and temperature meter – Reliable water quality monitoring – anywhere you need it The Milwaukee EC60 was developed for applications requiring reliable measurement of higher conductivity and TDS levels. This compact meter combines conductivity, total dissolved solids (TDS), and temperature measurements into a single device, making it suitable for a wide range of applications. Its extended measurement range makes the EC60 particularly well-suited for samples with high salt or mineral concentrations. Automatic temperature compensation accounts for temperature fluctuations during measurement, ensuring consistent results. Its rugged, waterproof design allows for both indoor and outdoor use. Automatic 1-point calibration ensures quick setup and easy maintenance. The replaceable probe further extends the meter's service life and helps reduce long-term costs. By simultaneously measuring conductivity, TDS, and temperature, the Milwaukee EC60 offers a practical solution for users who need to monitor multiple water parameters with a single device. Technical Specifications Measurement parameters: Conductivity (High range) | TDS (Total Dissolved Solids) | Temperature Measurement range: 0.00 to 20.00 mS/cm | 0.00 to 10.00 ppt (= 10,000 ppm) TDS | 0.0 to 60.0 °C Resolution: 0.01 mS/cm / 0.01 ppt / 0.1 °C / 0.1 °F Temperature compensation: Automatic Key benefits at a glance Designed for higher conductivity and TDS ranges Waterproof housing for daily use Automatic temperature compensation Replaceable probe for extended service life Compact and user-friendly design Typical applications Aquaculture and coral farming Beverage industry Food production Swimming pool technology Hydroponics Water treatment Frequently Asked Questions Can I check the water parameters on the spot? Yes, this compact device is ideal for quick measurements on the go. What water applications is the tester suitable for? It is suitable for aquariums, hydroponics, swimming pools and many other areas. Do I need to buy several devices for different measurements? No, the tester measures several key water parameters in a single device. It combines EC, TDS and temperature measurements in a waterproof unit and offers automatic temperature compensation. Measurement parameters: Conductivity (high range) | TDS (total dissolved solids) | Temperature Measuring range: 0.00 to 20.00 mS/cm | 0.00 to 10.00 ppt (= 10,000 ppm) TDS | 0.0 to 60.0 °C How easy is it to use on a daily basis? Measurements can be taken in just a few simple steps and the display is easy to read. What happens if the probe wears out? The probe can be replaced without having to replace the entire device. Is the device splash-proof? Yes, the waterproof housing is designed for damp working environments. How quickly do I see the measurement result? The values are shown on the display within a few seconds.
Portable conductivity meter with automatic temperature compensation for applications in agriculture, hydroponics, and water analysis. Ideal for checking nutrient solutions and monitoring salt and conductivity levels. Milwaukee MW301 PRO Portable Conductivity Meter The Milwaukee MW301 PRO is a portable conductivity meter designed to measure electrical conductivity in water, nutrient solutions, and other liquids. It was developed specifically for agricultural and hydroponic applications where reliable monitoring of nutrient and salt concentrations is essential. Measuring conductivity provides insight into the levels of dissolved salts and nutrients. In agriculture, this helps assess fertilizer requirements and monitor fertilization practices. In hydroponic systems, the meter aids in monitoring nutrient solutions, allowing the composition to be adjusted to meet the plants' needs. The MW301 PRO features automatic temperature compensation, which accounts for temperature fluctuations during measurement, ensuring convenient and reliable readings. The large LCD display ensures measurement results are easy to read, while the compact housing allows for flexible use both indoors and outdoors. The package includes the appropriate conductivity probe, calibration solution, a battery, and the necessary accessories for setup, allowing the device to be used immediately after brief preparation. Technical Specifications Measurement parameter: EC (Electrical Conductivity) Measurement range: EC: 0 to 1990 µS/cm Resolution: 1 µS/cm Accuracy: ±2% of full scale at 25°C Key Benefits at a Glance Specially designed for agriculture and hydroponics Automatic temperature compensation Large, easy-to-read LCD display Compact and portable design Long battery life for mobile use Typical Applications Agriculture Hydroponics Greenhouses Plant cultivation Water analysis Scope of Delivery Milwaukee MW301 PRO meter SE510 conductivity probe 1413 µS/cm calibration solution Calibration screwdriver 9V battery User manual Frequently Asked Questions What can I measure with the MW301 Pro? The MW301 is a portable electrical conductivity (EC) meter with automatic temperature compensation. Measurement parameter: EC (Electrical Conductivity) Measurement range: EC: 0 to 1999 µS/cm What can I use this meter for in everyday life? Ideal for monitoring water quality in agriculture, aquariums, hydroponic systems or other water applications. Is the device also suitable for regular measurements? Yes, it has been designed for reliable and repeatable measurements. Can I read the values quickly? Yes, the large display shows the measurement results clearly and legibly. Do I need to allow plenty of time to operate it? No, the measurement process is straightforward and takes just a few steps. Is the device suitable for beginners? Yes, the device is easy to use even without extensive experience. Can I use the meter in different locations? Yes, thanks to its compact design, it is easy to transport. Why is it worth having your own meter? You can check water values yourself at any time and do not have to wait for external tests.
Portable conductivity meter for higher conductivity ranges with automatic temperature compensation. Milwaukee MW302 PRO portable conductivity meter for high measurement ranges The Milwaukee MW302 PRO is designed for conductivity measurements in applications involving elevated salt and nutrient concentrations. Thanks to its extended measurement range, the device is particularly well-suited for agriculture, hydroponics, and water treatment, as well as numerous other applications in laboratories and food production. Measuring electrical conductivity provides important information regarding the concentration of dissolved salts in a solution. In hydroponic systems, the MW302 PRO aids in monitoring nutrient solutions, allowing fertilizer concentrations to be controlled and adjusted as needed. Conductivity measurement is also useful in agriculture for assessing nutrient levels and irrigation solutions. For ease of use, the meter features automatic temperature compensation. This accounts for temperature fluctuations during measurement and improves the comparability of results. Its compact design allows for flexible use directly on-site. The MW302 PRO comes complete with a suitable conductivity probe and calibration solution, ensuring a quick and easy start to conductivity measurement. Technical Specifications Measurement parameter: EC (Electrical Conductivity) Measurement range: EC: 0.0 to 10.0 mS/cm Resolution: 0.1 mS/cm Accuracy: ±2% of full scale at 25°C Key Benefits at a Glance For conductivity measurements in higher ranges Automatic temperature compensation Compact and portable design Includes conductivity probe and calibration solution Long battery life for mobile applications Typical Applications Agriculture Hydroponics and soilless cultivation Greenhouse applications Water treatment Food production Water analysis Scope of Delivery Milwaukee MW302 PRO meter SE520 conductivity probe 1413 µS/cm calibration solution 9V battery User manual Frequently Asked Questions Which parameter does the MW302 PRO EC meter measure? The MW302 is a portable high-range (EC High) conductivity meter with automatic temperature compensation. Measurement parameter: EC (Electrical Conductivity) Measurement range: EC: 0.0 to 10.0 mS/cm For which types of water is this meter suitable? It is particularly suitable for water with higher concentrations of dissolved substances. Can I take measurements directly on-site? Yes, the device is portable and delivers quick results. Is it easy for beginners to use? Yes, operation is straightforward and easy to understand. How easy is it to read the values? The large display ensures a clear and easy-to-read readout. Do I have to wait long for the measurement result? No, the readings are displayed within a few seconds. Can I use the device regularly? Yes, it is suitable for frequent use in both daily life and professional settings. Why should I measure my water values myself? You gain immediate clarity and can react promptly if necessary. For which applications is the device suitable? This meter was developed for agricultural and hydroponic applications and is also ideally suited for use in the food industry, laboratories, and water treatment.
The portable 4-in-1 MW306 PRO conductivity/TDS/NaCl (salinity)/temperature meter has won many fans worldwide with its reliable fast and easy operation. It is also very rugged and has IP67 waterproof rating. It has a user-friendly interface for data exchange and as mentioned at the beginning, it is designed to measure four different parameters of water. Ideal for use in hydroponics, horticulture, laboratories, food processing, water treatment and many other applications with demanding measurement requirements.
MW401 is a portable TDS meter with automatic temperature compensation and low range.This meter is designed for aquariums, aquaculture, laboratories and water treatment applications to meet the needs of both hobbyists and professionals.It is also an excellent meter for food labs and water treatment applications.TDS tests provide a method for optimising chemical use and minimising operating costs.In aquariums and aquaculture, high concentrations of total dissolved solids (TDS) can affect water clarity and reduce photosynthesis of aquatic plants.In water treatment, high TDS can affect the clarity and taste of drinking water.The MW401 has a measuring range of 0 to 1990 mg/L (ppm) with a resolution of 10 mg/L (ppm).This meter comes complete with conductivity probe with 1 m (3.3') cable and calibration solution. Frequently Asked Questions What can I use this tester for? Ideal for testing drinking water, aquariums, reverse osmosis systems and other water applications. How quickly do I get a reading? The result appears on the display within a few seconds. Is the device suitable for beginners? Yes, it is straightforward to use and requires no prior knowledge. Can I detect changes in water quality? Yes, regular measurements help to identify changes quickly. Do I have to calculate the values myself? No, the device displays the measurement directly and clearly. Is the meter suitable for regular checks? Yes, it has been designed for frequent and reliable measurements. Why should I use a digital meter? You get quick results and avoid inaccurate estimates or colour comparisons.
MW402 is a high range (TDS) portable conductivity meter with automatic temperature compensation.This meter is designed for aquariums, aquaculture, laboratories and water treatment applications to meet the needs of both hobbyists and professionals.It is also an excellent meter for food labs and water treatment applications.TDS tests provide a method for optimising chemical use and minimising operating costs.In aquariums and aquaculture, high concentrations of total dissolved solids (TDS) can affect water clarity and reduce photosynthesis of aquatic plants.A high TDS value can affect the clarity and taste of drinking water.The MW402 has a measuring range of 0.0 to 10.0 g/L (ppt) with a resolution of 0.1 g/L (ppt).This TDS meter comes complete with conductivity probe with 1 meter (3.3') cable and a calibration solution. Frequently Asked Questions What types of water samples is this meter suitable for? Ideal for water with a higher mineral or salt content, as well as many technical applications. Can I check the water quality quickly? Yes, the meter provides an easy-to-read reading within a few seconds. Is the meter suitable for regular measurements? Yes, it has been designed for frequent use and reliable results. Do I need experience with this type of equipment? No, it is easy to use and well suited even for beginners. Can I use the device in different locations? Yes, thanks to its compact design, it is easy to transport. How can I detect changes in the water? Regular measurements allow deviations to be identified quickly. Why is a digital measuring device worth it? You get quick results and avoid inaccurate estimates or comparisons.
This 3-in-1 low range combination meter allows you to measure pH, EC (conductivity) and TDS with a single meter and probe.It comes complete with the SE600 combined pH/EC/TDS probe, a 20 ml bag of pH 7.01 buffer solution, a 20 ml bag of 1413 µS/cm calibration solution, a 20 ml bag of 1382 ppm calibration solution, a 9 V battery and instructions.
This 3-in-1 combination meter allows you to measure pH, EC high range (conductivity) and TDS high range with a single meter and probe.It comes complete with the SE600 combined pH/EC/TDS probe, a 20 ml bag of pH 7.01 buffer solution, a 20 ml bag of 1413 µS/cm calibration solution, a 20 ml bag of 1500 ppm calibration solution, a 9 V battery and instructions.
Waterproof multi-parameter meter for measuring pH, conductivity, TDS, and temperature, featuring automatic temperature compensation (ATC) and a replaceable electrode. The Milwaukee MW803 was specifically designed for applications in the low conductivity range. Milwaukee MW803 Waterproof pH, Conductivity, TDS, and Temperature Meter – Compact All-in-One Meter The Milwaukee MW803 is a versatile multi-parameter meter for the simultaneous determination of pH, conductivity, TDS (Total Dissolved Solids), and temperature. By combining several key water parameters into one compact unit, the meter is ideal for users who need to monitor water quality quickly and reliably without relying on multiple separate devices. The MW803 was specifically developed for low-conductivity applications. This makes the device particularly suitable for hydroponics, drinking water analysis, aquarium maintenance, and other applications involving low salt and mineral concentrations. Simultaneous measurement of multiple parameters simplifies water quality assessment and supports efficient monitoring of water and nutrient solutions. To ensure precise results, the meter features automatic temperature compensation (ATC). Temperature-related fluctuations are automatically accounted for during conductivity and TDS measurements, ensuring reliable readings even under changing environmental conditions. Additionally, the integrated temperature sensor allows for direct monitoring of the sample temperature. Another advantage of the Milwaukee MW803 is its replaceable electrode. Should the electrode wear out or its performance decline, it can be replaced without needing to discard the entire meter. This reduces long-term costs and significantly extends the device's service life. Automatic calibration ensures simple and convenient setup. One- or two-point calibration options are available for pH measurements, while conductivity measurement utilizes automatic single-point calibration. This allows the device to be quickly adapted to various measurement requirements. The waterproof housing protects the meter during use in damp environments, making the MW803 a reliable solution for both mobile and stationary applications. Its robust construction and ease of use make the device an attractive choice for both professional users and demanding hobbyists. Technical Specifications Measurement parameters: pH | Conductivity | TDS (Total Dissolved Solids) | Temperature Measurement range: 0.00 to 14.00 pH | 0 to 3999 µS/cm | 0 to 2000 ppm (mg/L) TDS | 0.0 to 50.0 °C (32.0 to 122.0 °F) Resolution: 0.01 pH | 1 µS/cm | 1 ppm | 0.1 °C (0.1 °F) Accuracy: pH: ±0.05 pH | EC/TDS: 2% of full scale | ±0.5 °C (±1 °F) Calibration: Automatic Temperature compensation: Automatic (ATC) Key Benefits at a Glance Simultaneous measurement of pH, conductivity, TDS, and temperature Specially designed for low-conductivity applications Automatic temperature compensation Automatic calibration functions Reliable monitoring of multiple water parameters with a single device Typical Applications Drinking water analysis Aquariums Water treatment Laboratory applications Nutrient solutions General water analysis Scope of Delivery Milwaukee MW803 pH, conductivity, TDS, and temperature meter Batteries User manual Frequently Asked Questions Can I check multiple water parameters simultaneously with this device? Yes, you can measure pH, conductivity, TDS, and temperature with a single device. Is the meter suitable for aquariums and ponds? Yes, it helps you quickly check key water parameters and detect changes early on. Can I replace the probe if it wears out? Yes, the pH probe is replaceable, allowing you to continue using the device for a long time. Is the device suitable for outdoor use? Yes, the housing is waterproof and designed for both humid environments and outdoor use. Do I need to account for temperature myself when taking measurements? No, the device automatically compensates for temperature fluctuations to ensure reliable results. Is it easy for beginners to use? Yes, the measurement process is straightforward, and the readings are displayed directly on the screen. What applications is this meter best suited for? It is ideal for hydroponics, aquariums, pools, drinking water testing, and many other water analysis applications.
Waterproof multi-parameter meter for measuring pH, conductivity, TDS, and temperature. The Milwaukee MW804 was specifically designed for applications involving higher conductivity and TDS levels and features automatic temperature compensation (ATC), automatic calibration, and a replaceable electrode. Milwaukee MW804 Waterproof pH, Conductivity, TDS, and Temperature Meter – Compact All-in-One Meter The Milwaukee MW804 is a versatile multi-parameter meter for the simultaneous determination of pH, conductivity, TDS (Total Dissolved Solids), and temperature. By combining several key water parameters into a single device, the meter is ideally suited for applications requiring reliable monitoring of water quality and mineral content. Compared to the Milwaukee MW803, the MW804 was developed for applications with higher conductivity and TDS levels. This makes the device particularly suitable for use in agriculture, aquaculture, and water treatment, as well as in applications involving elevated salt and mineral concentrations. Simultaneous parameter monitoring enables a comprehensive assessment of water quality and reduces the effort required for individual measurements. To ensure reliable results, the MW804 features automatic temperature compensation (ATC). Temperature-related effects on conductivity and TDS measurements are automatically accounted for, ensuring consistent readings even under changing environmental conditions. Additionally, the sample temperature can be directly measured and monitored. The replaceable electrode ensures a long service life and cost-effective maintenance. Should the electrode wear out or sensor performance decline, it can be replaced without needing to replace the entire meter. This reduces ongoing costs and simplifies device maintenance. Automatic calibration facilitates quick and convenient setup. One- or two-point calibration is available for pH measurement, while conductivity measurement utilizes automatic one-point calibration. This allows the device to be easily adapted to various measurement tasks. Thanks to its waterproof housing, the MW804 is suitable for both laboratory use and mobile outdoor measurements. Its robust construction and ease of use make it a reliable solution for professional users and demanding monitoring applications. Technical Specifications Measurement parameters: pH | Conductivity | TDS (Total Dissolved Solids) | Temperature Measurement range: 0.00 to 14.00 pH | 0.00 to 20.00 mS/cm | 0.00 to 10.00 ppt TDS | 0.0 to 50.0 °C (32.0 to 122.0 °F) Accuracy: pH: ±0.05 pH | EC/TDS: 2% of full scale Calibration: Automatic Temperature compensation: Automatic Key benefits at a glance Simultaneous measurement of pH, conductivity, TDS, and temperature Designed for applications with higher conductivity and TDS levels Automatic temperature compensation Automatic calibration functions Suitable for portable and stationary applications Typical applications Agriculture Aquaculture Water treatment Process water monitoring Nutrient solutions Laboratory applications Scope of delivery Milwaukee MW804 pH, conductivity, TDS, and temperature meter Batteries User manual Frequently Asked Questions Is the device suitable for water with high mineral or nutrient concentrations? Yes, the MW804 is particularly well-suited for water with higher conductivity and TDS levels. Do I need multiple devices for different water parameters? No, pH, conductivity, TDS, and temperature are all measured with a single device. Is the meter suitable for hydroponics and nutrient solutions? Yes, it was designed to reliably monitor key water parameters in nutrient solutions. Can I replace the pH probe if necessary? Yes, the probe is replaceable. This saves costs in the long run and extends the device's service life. Is the device easy to use? Yes, the readings are clearly displayed, and the device is quick to learn. Can I use the meter outdoors? Yes, the robust, water-resistant housing makes it well-suited for outdoor use. Do I need to account for water temperature during measurement? No, the device automatically compensates for temperature fluctuations to ensure the most accurate readings possible.
This MW805 MAX pH/EC/TDS/Temp. 4-in-1 combo meter allows you to measure pH, EC (conductivity), TDS and Temp. with a single meter and one single probe.DESIGN FEATURESpH, conductivity / nutrient EC, TDS (ppt) with automatic temperature compensationSelectable TDS factors from .40 to 0.8; defaulet value 0.50Stability indicator prompting the user when the readings stabilizeDedicated GLP key to store and recall data on system statusA replaceable, Amplified Combination pH/EC/TDS/Temp probe with a single 1 meter cable for easy use (MA852D/1 probe included)A cloth junction on the pH sensor to reduce contamination when measuring fertilizer solutions. Gel filled for long lasting measurmentsA light weight and portable form factor at just 260g with battery and just over 7,62cm wideA large easy to read displayFactory calibration for Temperature and simple, highly accurate, single cell automatic, one point calibration for EC and an automatic up to 5 point calibration for pHIP 67 rated rugged case built for field or lab applicationsSpecialized design for hydroponic, aquaponic, and greenhouse growers
This High Range MW806 MAX pH/EC/TDS/Temp. 4-in-1 combo meter allows you to measure pH, EC (conductivity), TDS and Temp. with a single meter and one single probe.DESIGN FEATURESpH, conductivity / nutrient EC, TDS (ppt) with automatic temperature compensationSelectable TDS factors from 0.40 to 0.8; defaulet value 0.50Stability indicator prompting the user when the readings stabilizeDedicated GLP key to store and recall data on system statusA replaceable, Amplified Combination pH/EC/TDS/Temp probe with a single 1 meter cable for easy use (MA852 probe included)A cloth junction on the pH sensor to reduce contamination when measuring fertilizer solutionsGel filled for long lasting measurmentsA light weight and portable form factor at just 260g with battery and just over 7,62cm wideA large easy to read displayFactory calibration for Temperature and simple, highly accurate, single cell automatic, one point calibration for EC and an automatic up to 5 point calibration for pHIP 67 rated rugged case built for field or lab applicationsSpecialized design for hydroponic, aquaponic, and greenhouse growers
Waterproof TDS meter for measuring dissolved solids in the low range. The Milwaukee T75 features automatic temperature compensation, a replaceable probe, and simple single-point calibration. Milwaukee T75 waterproof TDS meter for dissolved solids with automatic temperature compensation and replaceable probe The Milwaukee T75 is a compact, waterproof TDS meter designed to measure Total Dissolved Solids (TDS) in water samples. Specifically developed for low-range measurements, this tester is ideal for applications requiring reliable water quality monitoring. Automatic temperature compensation (ATC) ensures that temperature fluctuations during measurement are automatically accounted for, delivering consistent results even under changing environmental conditions. This is particularly advantageous for applications such as water treatment, aquarium maintenance, and routine water testing. Another key feature of the Milwaukee T75 is its replaceable probe. Should the electrode wear out or performance decline, it can be replaced individually without the need to discard the entire unit, thereby extending the device's service life and reducing maintenance costs. Manual single-point calibration allows for easy adjustment of the device to specific measurement requirements. Its compact design ensures a comfortable grip, making it suitable for both portable use and regular operation in laboratories or technical facilities. The waterproof housing protects the device during use in damp environments, ensuring reliable operation across a wide range of conditions. Combined with ease of use and precise measurement technology, the Milwaukee T75 offers a practical solution for monitoring TDS levels. Technical Data Measurement parameter: Total Dissolved Solids (TDS) Measurement range: 0 to 1999 ppm (mg/L) Resolution: 1 ppm (mg/L) Accuracy: EC: ±2% of full scale Temperature compensation: Automatic, 0 to 50°C (32 to 122°F) Advantages Specifically designed for low-range TDS measurements Replaceable probe Compact and portable design Reliable monitoring of total dissolved solids Suitable for mobile and stationary applications Typical Applications Aquaristics Water treatment Drinking water monitoring Environmental analysis Water quality monitoring General TDS measurements Scope of Delivery Milwaukee T75 TDS meter Batteries User manual Frequently Asked Questions Is this meter suitable for drinking water? Yes, it is ideal for quickly testing drinking water and other water samples. Can I check the water quality myself? Yes, the meter displays a reading directly on the screen in just a few seconds. How does a TDS meter benefit me in everyday life? You can quickly tell if the composition of your water has changed. Is the device also suitable for aquariums or reverse osmosis systems? Yes, many users employ it to monitor aquarium and filtered water. Do I need to take special care of the device after each use? No, it is usually sufficient to rinse the measuring tip briefly after use. Can the device get wet? Yes, the casing is waterproof and designed for use around water. Is it complicated to use? No, the device is easy to use and is also suitable for beginners.
Waterproof TDS meter for measuring dissolved solids in the high range. The Milwaukee T76 features automatic temperature compensation, a replaceable probe, and simple single-point calibration. Milwaukee T76 waterproof TDS meter for dissolved solids with automatic temperature compensation and replaceable probe The Milwaukee T76 is a waterproof TDS meter designed to measure Total Dissolved Solids (TDS) in water samples. Unlike meters designed for lower TDS ranges, the T76 is particularly well-suited for applications involving higher concentrations of dissolved substances, offering reliable water quality monitoring in demanding environments. Automatic temperature compensation (ATC) automatically adjusts for temperature-related fluctuations during measurement. This ensures consistent and reliable results, even amidst changing ambient conditions or varying sample temperatures. A key advantage of the Milwaukee T76 is its replaceable probe. If the sensor wears out or performance declines, the electrode can be replaced without needing to discard the entire unit. This significantly reduces maintenance costs and extends the device's service life. Manual single-point calibration allows for easy adjustment to specific measurement requirements. Its compact design ensures a comfortable grip, making the device suitable for both portable use and regular operation in technical facilities or laboratory settings. The waterproof housing protects the meter during use in damp environments, ensuring reliable operation under challenging conditions. Ease of use and robust construction make the Milwaukee T76 a practical solution for users who need to precisely monitor higher TDS levels. Technical Specifications Measurement parameter: Total Dissolved Solids (TDS) Measurement range: 0 to 9990 ppm (mg/L) Resolution: 10 ppm (mg/L) Accuracy: EC: ±2% of full scale Temperature compensation: Automatic, 0 to 50°C (32 to 122°F) Advantages Waterproof housing Suitable for high-range TDS measurements Replaceable probe Rugged design for demanding operating conditions Typical Applications Water treatment Process water monitoring Aquariums Environmental analysis Laboratory applications Scope of Delivery Milwaukee T76 TDS meter Batteries User manual Frequently Asked Questions Can I quickly see if my water is clean enough using this device? Yes, it displays the amount of dissolved substances in the water directly. Is the meter suitable for pools and aquariums as well? Yes, it is ideal for aquariums, pools, water treatment, and similar applications. Do I need to worry about inaccurate readings due to temperature fluctuations? No, automatic temperature compensation ensures stable results. How often do I need to calibrate the device? A simple 1-point calibration—performed occasionally depending on usage—is sufficient. What happens if the probe gets dirty over time? It can be easily cleaned or replaced if necessary. Can I use the device outdoors? Yes, it is waterproof and suitable for outdoor use. Is the device easy to use, even without prior experience? Yes—simply dip it in, read the result, and you're done; it’s very straightforward.
The XS REVIO is a professional portable multi-parameter meter that can be powered in three different ways (battery, PC, AC adapter). It has an illuminated color graphic display for excellent data visualization in all lighting conditions, also thanks to the possibility of automatically and manually adjusting the contrast and illumination of the display. Measurement of pH, mV, ORP, ISE, conductivity, TDS, salinity, resistivity, dissolved oxygen and temperature. Online help with setup and calibration allows easy and immediate use of the instrument. Simultaneous display of multiple parameters that can be selected by the operator. Automatic pH calibration with USA and NIST buffers up to 5 points and 5 user defined points. Automatic ORP calibration 1 point. Automatic conductivity calibration with up to 4 points and 1 user defined point. Adjustable reference temperature and selectable cell constant. Automatic O2 calibration up to two points (0% - 100%). Display of calibrated points with symbols. GLP functions: Date and time, display of calibration data and calibration period setting.Manual and automatic data logger with the possibility of downloading the data to a PC via micro USB.Display of measurement stability and possibility to select 3 stability levels. All processes are constantly monitored and signaled to the operator by the colored LED above the display and by self-diagnostic messages. The following pre-assembled case variants are available for selection: Variant 1: with digital electrode 201 T DHS, cell 2301T and polarographic oxygen sensor, built-in temperature sensor and 3 m fixed cable, in compact case (manufacturer's number: 50110952). Variant 2: with pH electrode 201T/3MT , 2301T cell (conductivity), polarographic oxygen sensor, built-in temperature sensor and 3 m fixed cable each, in compact case (manufacturer's number: 50110912)Variant 3: complete with pH electrode 201T/3MT and polarographic sensor DO7/3MT, both with built-in temperature sensor and fixed cable 3m, in compact case (manufacturer number: 50110922) Variant 4: complete with conductivity cell 2301T/3MT and polarographic sensor DO7/3MT, both with built-in temperature sensor and fixed cable 3m. Additionally S7-BNC cable and NT55 temperature sensor, each 3m cable, in compact case (manufacturer number: 50110942) Variant 5: with S7-BNC cable and NT55 temperature sensor, both 3m cable, in compact case (manufacturer number: 50110932)
The XS REVIO is a professional portable multi-parameter meter that can be powered in three different ways (battery, PC, AC adapter). It has an illuminated color graphic display for excellent data visualization in all lighting conditions, also thanks to the possibility of automatically and manually adjusting the contrast and illumination of the display. Measurement of pH, mV, ORP, ISE, conductivity, TDS, salinity, resistivity, dissolved oxygen and temperature. Online help with setup and calibration allows easy and immediate use of the instrument. Simultaneous display of multiple parameters that can be selected by the operator. Automatic pH calibration with USA and NIST buffers up to 5 points and 5 user defined points. Automatic ORP calibration 1 point. Automatic conductivity calibration with up to 4 points and 1 user defined point. Adjustable reference temperature and selectable cell constant. Automatic O2 calibration up to two points (0% - 100%). Display of calibrated points with symbols. GLP functions: Date and time, display of calibration data and calibration period setting.Manual and automatic data logger with the possibility of downloading the data to a PC via micro USB.Display of measurement stability and possibility to select 3 stability levels. All processes are constantly monitored and signaled to the operator by the colored LED above the display and by self-diagnostic messages. The following pre-assembled case variants are available for selection: Variant 1: with digital electrode 201 T DHS, cell 2301T and polarographic oxygen sensor, built-in temperature sensor and 3 m fixed cable, in compact case (manufacturer's number: 50110952). Variant 2: with pH electrode 201T/3MT , 2301T cell (conductivity), polarographic oxygen sensor, built-in temperature sensor and 3 m fixed cable each, in compact case (manufacturer's number: 50110912)Variant 3: complete with pH electrode 201T/3MT and polarographic sensor DO7/3MT, both with built-in temperature sensor and fixed cable 3m, in compact case (manufacturer number: 50110922) Variant 4: complete with conductivity cell 2301T/3MT and polarographic sensor DO7/3MT, both with built-in temperature sensor and fixed cable 3m. Additionally S7-BNC cable and NT55 temperature sensor, each 3m cable, in compact case (manufacturer number: 50110942) Variant 5: with S7-BNC cable and NT55 temperature sensor, both 3m cable, in compact case (manufacturer number: 50110932)
The XS REVIO is a professional portable multi-parameter meter that can be powered in three different ways (battery, PC, AC adapter). It has an illuminated color graphic display for excellent data visualization in all lighting conditions, also thanks to the possibility of automatically and manually adjusting the contrast and illumination of the display. Measurement of pH, mV, ORP, ISE, conductivity, TDS, salinity, resistivity, dissolved oxygen and temperature. Online help with setup and calibration allows easy and immediate use of the instrument. Simultaneous display of multiple parameters that can be selected by the operator. Automatic pH calibration with USA and NIST buffers up to 5 points and 5 user defined points. Automatic ORP calibration 1 point. Automatic conductivity calibration with up to 4 points and 1 user defined point. Adjustable reference temperature and selectable cell constant. Automatic O2 calibration up to two points (0% - 100%). Display of calibrated points with symbols. GLP functions: Date and time, display of calibration data and calibration period setting.Manual and automatic data logger with the possibility of downloading the data to a PC via micro USB.Display of measurement stability and possibility to select 3 stability levels. All processes are constantly monitored and signaled to the operator by the colored LED above the display and by self-diagnostic messages. The following pre-assembled case variants are available for selection: Variant 1: with digital electrode 201 T DHS, cell 2301T and polarographic oxygen sensor, built-in temperature sensor and 3 m fixed cable, in compact case (manufacturer's number: 50110952). Variant 2: with pH electrode 201T/3MT , 2301T cell (conductivity), polarographic oxygen sensor, built-in temperature sensor and 3 m fixed cable each, in compact case (manufacturer's number: 50110912)Variant 3: complete with pH electrode 201T/3MT and polarographic sensor DO7/3MT, both with built-in temperature sensor and fixed cable 3m, in compact case (manufacturer number: 50110922) Variant 4: complete with conductivity cell 2301T/3MT and polarographic sensor DO7/3MT, both with built-in temperature sensor and fixed cable 3m. Additionally S7-BNC cable and NT55 temperature sensor, each 3m cable, in compact case (manufacturer number: 50110942) Variant 5: with S7-BNC cable and NT55 temperature sensor, both 3m cable, in compact case (manufacturer number: 50110932)
The XS REVIO is a professional portable multi-parameter meter that can be powered in three different ways (battery, PC, AC adapter). It has an illuminated color graphic display for excellent data visualization in all lighting conditions, also thanks to the possibility of automatically and manually adjusting the contrast and illumination of the display. Measurement of pH, mV, ORP, ISE, conductivity, TDS, salinity, resistivity, dissolved oxygen and temperature. Online help with setup and calibration allows easy and immediate use of the instrument. Simultaneous display of multiple parameters that can be selected by the operator. Automatic pH calibration with USA and NIST buffers up to 5 points and 5 user defined points. Automatic ORP calibration 1 point. Automatic conductivity calibration with up to 4 points and 1 user defined point. Adjustable reference temperature and selectable cell constant. Automatic O2 calibration up to two points (0% - 100%). Display of calibrated points with symbols. GLP functions: Date and time, display of calibration data and calibration period setting.Manual and automatic data logger with the possibility of downloading the data to a PC via micro USB.Display of measurement stability and possibility to select 3 stability levels. All processes are constantly monitored and signaled to the operator by the colored LED above the display and by self-diagnostic messages. The following pre-assembled case variants are available for selection: Variant 1: with digital electrode 201 T DHS, cell 2301T and polarographic oxygen sensor, built-in temperature sensor and 3 m fixed cable, in compact case (manufacturer's number: 50110952). Variant 2: with pH electrode 201T/3MT , 2301T cell (conductivity), polarographic oxygen sensor, built-in temperature sensor and 3 m fixed cable each, in compact case (manufacturer's number: 50110912)Variant 3: complete with pH electrode 201T/3MT and polarographic sensor DO7/3MT, both with built-in temperature sensor and fixed cable 3m, in compact case (manufacturer number: 50110922) Variant 4: complete with conductivity cell 2301T/3MT and polarographic sensor DO7/3MT, both with built-in temperature sensor and fixed cable 3m. Additionally S7-BNC cable and NT55 temperature sensor, each 3m cable, in compact case (manufacturer number: 50110942) Variant 5: with S7-BNC cable and NT55 temperature sensor, both 3m cable, in compact case (manufacturer number: 50110932)
The XS REVIO is a professional portable multi-parameter meter that can be powered in three different ways (battery, PC, AC adapter). It has an illuminated color graphic display for excellent data visualization in all lighting conditions, also thanks to the possibility of automatically and manually adjusting the contrast and illumination of the display. Measurement of pH, mV, ORP, ISE, conductivity, TDS, salinity, resistivity, dissolved oxygen and temperature. Online help with setup and calibration allows easy and immediate use of the instrument. Simultaneous display of multiple parameters that can be selected by the operator. Automatic pH calibration with USA and NIST buffers up to 5 points and 5 user defined points. Automatic ORP calibration 1 point. Automatic conductivity calibration with up to 4 points and 1 user defined point. Adjustable reference temperature and selectable cell constant. Automatic O2 calibration up to two points (0% - 100%). Display of calibrated points with symbols. GLP functions: Date and time, display of calibration data and calibration period setting.Manual and automatic data logger with the possibility of downloading the data to a PC via micro USB.Display of measurement stability and possibility to select 3 stability levels. All processes are constantly monitored and signaled to the operator by the colored LED above the display and by self-diagnostic messages. The following pre-assembled case variants are available for selection: Variant 1: with digital electrode 201 T DHS, cell 2301T and polarographic oxygen sensor, built-in temperature sensor and 3 m fixed cable, in compact case (manufacturer's number: 50110952). Variant 2: with pH electrode 201T/3MT , 2301T cell (conductivity), polarographic oxygen sensor, built-in temperature sensor and 3 m fixed cable each, in compact case (manufacturer's number: 50110912)Variant 3: complete with pH electrode 201T/3MT and polarographic sensor DO7/3MT, both with built-in temperature sensor and fixed cable 3m, in compact case (manufacturer number: 50110922) Variant 4: complete with conductivity cell 2301T/3MT and polarographic sensor DO7/3MT, both with built-in temperature sensor and fixed cable 3m. Additionally S7-BNC cable and NT55 temperature sensor, each 3m cable, in compact case (manufacturer number: 50110942) Variant 5: with S7-BNC cable and NT55 temperature sensor, both 3m cable, in compact case (manufacturer number: 50110932)
IP Protection: IP67 Manufacturer article number: 50014153