What are pocket testers?

Horiba WQ330-K – Your Professional 3-Channel Water Quality Meter Expandable multi-parameter system for simultaneous measurement of pH, conductivity, redox, and other water parameters The Horiba LAQUA WQ330-K is a powerful multi-channel device for advanced water analysis, both on-site and in the laboratory. With three freely configurable measurement channels, it can simultaneously record parameters such as pH, conductivity, redox potential, TDS, temperature, oxygen, ammonia, calcium, chloride, nitrate, fluoride, and potassium. Intuitive operation, automatic sensor recognition, and digital calibration ensure accurate, fast, and reproducible measurements. Flexible Multi-Parameter System for Field and Laboratory Applications The analysis kit with the Horiba WQ330-K is ideal for environmental and water body monitoring, research and teaching, as well as drinking and process water control. The large LCD display with LED backlight ensures excellent readability even in direct sunlight. Measurement data can be exported and documented via USB or wirelessly, greatly simplifying traceability and analysis. The modular system allows the device to be quickly and precisely adapted to any measurement task. It is ideal for users who need to efficiently and reliably monitor multiple water parameters. Technical Features and Key Advantages of the WQ330-K The three measurement channels of the Horiba WQ330-K enable simultaneous recording of different water parameters, reducing measurement time and allowing better evaluation of relationships between parameters. The modular sensor concept allows flexible use of digital sensors, which are automatically recognized and store their calibration history. Notably, the combination of high measurement precision, user-friendliness, and mobility makes this device stand out. Quick deployment without complicated setup, along with easy data transfer for documentation and analysis, makes the Horiba LAQUA WQ330-K an ideal solution for professional water analytics.

Mobile Analysis Laboratory for Ion Measurements – Versatile Use Compact kit for simultaneous determination of multiple water and environmental parameters The Horiba 4M LAQUAtwin Kit is a mobile laboratory that allows you to determine important ion parameters directly on-site. The case contains pocket testers for measuring sodium, potassium, nitrate, and calcium, as well as for temperature measurement. Each device uses ion-selective electrodes for targeted analysis of small samples and provides fast, reliable results. In addition to the four measurement devices, the kit includes calibration solutions and a wash/spray bottle for sensor cleaning. The sensors can be stored dry without special storage solutions. Compact Multi-Parameter Kit for Flexible On-Site Analyses The set is designed for measurement tasks where multiple ions need to be detected simultaneously, for example when monitoring drinking and process water, performing environmental checks of water bodies, conducting aquaculture analyses, or agricultural research. Thanks to the case, all essential testers including accessories are always on hand and ready for immediate use. The measurement results are available in a short time and are reliable and reproducible – ideal for routine and control measurements in the field. All components are neatly arranged in the case and ready for use at any time. An additional advantage is that the sensors can be stored dry without special storage solutions. Due to its compact design, the kit is particularly suitable for mobile applications where multiple ion parameters need to be determined quickly one after the other or in parallel. Why Multi-Parameter Ion Measurements Are Useful – and a Mobile Kit Is Ideal In many applications, not just a single measurement is important, but the interaction of multiple ion parameters. Sodium, potassium, nitrate, and calcium together influence water quality, biological processes, plant growth, and technical operations. Single measurements in a laboratory are often time-consuming and inflexible. A mobile analysis kit allows simultaneous detection of multiple parameters directly on-site. This allows relationships to be recognized more quickly, decisions to be made more reliably, and measurement campaigns to be carried out more efficiently. The Horiba 4M LAQUAtwin Kit combines these advantages in a compact, user-friendly system.

Precise Nitrate Tester for Plants – Mobile NO₃⁻ Analysis On-Site Horiba Nitrate Ion Pocket Tester Kit for fast and accurate on-site results The Horiba LAQUAtwin Nitrate Ion Hand Tester (NO3-11C) in its practical analysis kit is your mobile laboratory for reliable determination of nitrate ions and temperature in plant sap samples. With a wide measurement range of 6 to 9900 ppm NO₃⁻ and automatic temperature compensation, the device provides fast and accurate results. The ion-selective electrode ensures precise NO₃⁻ measurements, while the digital backlit display allows quick and easy reading of values. Mobile nitrate analysis kit for plants, water, and environmental monitoring The kit contains the handheld tester, five pipettes, three measuring cups, a plant sample press, standard solutions, and sampling sheets. This setup allows for rapid and reproducible analysis of plant sap without the need for additional laboratory equipment. The device is dust- and waterproof, features automatic standard recognition, Auto-Stabil and Auto-Hold functions, and has a long battery life, making it ideal for mobile use in the field, greenhouse, or laboratory. Why nitrate measurement in plants is important – and why a mobile kit is ideal Nitrate content in plants is a key indicator of nutrient supply, plant growth, and agricultural product quality. Excessively high or low nitrate levels can negatively impact yield, plant quality, and environmental compatibility. A mobile nitrate hand tester allows direct analysis of plant sap on-site, without time-consuming laboratory procedures. Fertilization and irrigation measures can be precisely adjusted, and over- or under-supply can be detected early. The Horiba LAQUAtwin NO3-11C provides a precise, fast, and practical solution for this purpose. Typical applications for the Horiba Nitrate Analysis Kit Aquaculture and coral monitoring Aquaristics Horticulture Beverage and food production Laboratories and schools Environmental monitoring Water treatment Water conditioning

Measure and Display 11 Parameters Simultaneously with Innovative Features, Newly Designed Control Unit and Sensor TechnologyDear customers, we will provide you with the item description in the next few days. You will find the technical data in the form of a table, which will give you a good overview, under the "Specifiactions" tab.  You are also welcome to take a look at the product flyer in the download area, which contains all the important information. Manufacturer article number:3200164509 (2 Meter = U-51)

Chlorine is the most commonly used water disinfectant. Applications vary from treatment of drinking water and wastewater to pool and spa sanitization and food processing to sterilization.Key features include:- User friendly- Small & Ergonomic case design- Inexpensive- Large and easy to read display- Good accuracy and immediate resultsAccessories:- Mi526-25 Powder reagents for free chlorophotometer (25 pieces) (item no. 895551)- MI0011 (10ml) glass vials for handy photometer (2 pieces) (Art.-No. 895555)- MI0013 Plastic stopper caps for 10 ml glass cuvettes (2 pieces) (Art.-No. 895556)The handy photometers are supplied in a carton box with all accessories.

IP Protection: IP67Manufacturer article number: 50014163

Der Milwaukee C65 Waterproof EC Pen bringt robuste Technik für präzise Leitfähigkeitsmessungen im niedrigen Bereich. Automatische Temperaturkompensation (ATC) sorgt für verlässliche Messergebnisse bei wechselnden Bedingungen. Dank wasserdichtem Gehäuse und austauschbarer Sonde ist das Gerät ideal für den Outdoor-Einsatz, Labor oder Messungen in feuchten Umgebungen.

HORIBA pH Handheld Tester – Ideal for Water and Environmental Analysis Precise pH measurements on-site – compact, reliable, and easy to use The Horiba LAQUAtwin pH tester is ideal for water quality testing in rivers, drinking water, and process water. With a measurement range of 0.0 to 14.0 pH and a 2-point calibration, the tester is suitable for a wide range of pH analyses. Just a single drop of sample provides quick and reliable measurement results. The tester combines electrode, display, and sample container in a robust IP67-rated housing that is dust- and waterproof. The digital display with backlight shows both pH and mV values. Features such as automatic stability detection and Auto-Hold simplify operation. With up to 400 hours of battery life, the tester is suitable for extended measurement series. Included are calibration buffer solutions (pH 4.01 & 7.00), batteries, pipette, instruction manual, and a carrying case. Handheld pH tester for fast and precise results With its wide measurement range and 2-point calibration, the Horiba LAQUAtwin pH tester is suitable for a variety of pH analyses. Even a single drop of sample is enough to obtain fast and accurate results. Its compact design makes the mobile pH tester highly user-friendly and allows on-site measurements without complex sample preparation or laboratory infrastructure. Robust, waterproof design with comprehensive features The tester integrates the electrode, display, and sample container in a robust IP67-rated housing that is dust- and waterproof. The digital backlit display clearly shows pH and mV values. Features like automatic stability detection and Auto-Hold simplify daily use. With a battery life of up to 400 hours, the tester is suitable for long measurement series. The package includes calibration buffer solutions (pH 4.01 & 7.00), batteries, pipette, instruction manual, and a practical carrying case. Typical applications of the Horiba LAQUAtwin pH Pocket Tester Aquaculture and corals Aquariums Beer, beverages, and food Heating systems Laboratories and schools Horticulture Water treatment

Mobile pH Tester with 3-Point Calibration for On-the-Go Use Horiba LAQUAtwin pH Tester – ideal for water and environmental analysis The Horiba LAQUAtwin pH Tester pH-22 is compact, robust, and designed for mobile use. With up to three calibration points and a measurement range of 0.00 to 14.00 pH, this device delivers high precision and reliability. Direct measurement with just a single drop of sample provides fast results. Features such as automatic buffer recognition, temperature compensation, and Stabil/Hold functionality make daily operation simple and convenient. Mobile precision pH tester for reliable on-site measurements The tester combines electrode, display, and sample container in a dust- and waterproof IP67 housing, making it ideal for field and laboratory applications. The digital backlit display shows pH and mV values clearly and accurately. Automatic shut-off and battery status indicators ensure convenient operation. The package includes calibration buffer solutions (pH 4.01 and 7.00), batteries, a pipette, and a quick-start guide. Why accurate pH measurement is critical – and why a handheld tester is ideal pH is a key parameter in water, environmental, and process analysis because it significantly influences chemical reactions, biological processes, and material stability. Even small deviations can substantially impact water quality, product quality, or process safety. A mobile handheld pH tester allows fast, reliable measurements directly on site. Changes can be detected immediately, and corrective actions implemented without delay. The Horiba LAQUAtwin pH-22 combines this flexibility with high measurement precision, making it ideal for field, laboratory, and routine applications. Typical applications for the Horiba LAQUAtwin pH handheld tester Aquaculture and coral monitoring Beer, beverage, and food production Heating systems Laboratories and schools Environmental analysis Water treatment Horticulture

Dear customers, our handy pocket tester analysis case protects your handheld tester safely and also offers you space for the required calibration and buffer solutions. The solutions matching the tester in the form of the 25ml sachets or 70ml bottles find space in the matching foam blank.  Your analysis case consists of the following components: 1x pocket tester  1x conductivity calibration solution EC 12880 μS/cm (25ml bag or 70ml bottle) 1x conductivity calibration solution EC 1413 μS/cm (25ml bag or 70ml bottle) 2x batteries 1x lanyard for the pocket tester 1x pack of tissues  You can also purchase the case separately to safely store your existing testers and always have the appropriate calibration and buffer solutions on site in the case. IP protection class: IP67 

IP Protection: IP67 With exchangeable combined probe Manufacturer article number: 50014293

Precise Potassium Ion Measurement on the Go – Mobile, Reliable, and Easy Precise potassium ion measurement with 2-point calibration and integrated temperature display The Horiba K-11 Potassium Pocket Tester was designed to determine potassium in a wide variety of samples with high precision. Thanks to the ion-selective electrode and the digital LCD screen with backlight, the tester is perfect for mobile water quality and environmental analyses. The minimal sample volume of only 0.3 ml (0.05 ml with sampling sheet) ensures reliable results even with small sample sizes. With its 2-point calibration and automatic standard recognition, the device can be flexibly adapted to different measurement conditions. The IP67 rating for dust and water protection, along with a long battery life of up to approximately 400 hours, makes the tester highly reliable for mobile use. Technical Features for Reproducible Potassium Measurements The potassium tester covers a wide measurement range from 4 to 9,900 ppm (mg/L) and additionally displays temperatures up to 50 °C with a resolution of 0.1 °C. The integrated temperature compensation ensures stable results even under changing environmental conditions. Automatic standard recognition, adjustable calibration values, and multiplication compensation guarantee high reproducibility across different sample types. This makes the K-11 suitable for both routine and demanding analytical tasks. Why Potassium Measurement Is Important – Ideal with the Horiba K-11 Hand Tester Potassium is an essential parameter in water, environmental, agricultural, and food analysis. In water bodies, potassium content affects water quality, in soils it is a key nutrient for healthy plant growth, and in food it plays an important role for nutrition and labeling requirements. A mobile potassium hand tester enables rapid on-site analysis without time-consuming laboratory testing. Changes can be detected immediately, and decisions can be made right away. The Horiba K-11 combines this flexibility with high measurement accuracy and ease of use – ideal for fieldwork, routine checks, and scientific studies. Where Can It Be Used? Environmental Monitoring: The K-11 is a fast and precise measurement tool for environmental technicians and scientists monitoring potassium concentrations in water bodies to ensure water quality and identify contamination sources. Agriculture: The K-11 allows farmers and agronomists to measure potassium in soil. This is crucial for fertilizer application and improving plant growth. Easy evaluation of soil extracts enables precise nutrient requirement determination. Food Industry: The tester is used by quality assurance personnel to check potassium content in beverages and food. These measurements are important for product development, health assessments, and compliance with nutritional labeling requirements. Teaching, Research, and Development: By deepening the understanding of potassium’s role in biological and chemical processes, the K-11 serves researchers and educators as a useful tool for experimental studies and educational purposes.

High-end laboratory measuring instrument for analytics  Dear customers, herewith we offer you our highly professional Horiba laboratory table-top measuring instrument of the 2000 series.  The LAQUA 2000 series laboratory tabletop meter has a very high-quality 5 inch display with backlighting which shows you all the important information, such as the measured value with up to three decimal places (depending on the resolution), the temperature, the date with time and much more.  The LAQUA 2000 series also offers you an adequate device memory with automatic data storage after a set time interval to document your daily measurements accurately over a long period of time. To protect the device settings from unauthorised access, they are password-protected. After your measurements, you can easily transfer all measurement data from the device to your PC via a USB cable in CSV, Excel and Pdf formats using the DAS20 software.  In order to facilitate your daily work with the device, the table measuring device visualises the correct calibration, the stable measurement as well as the electrode wear condition. The operation is intuitive because the available keys are marked with symbols and abbreviations. After the analysis, you can clean the device easily and in a time-saving manner with a damp cloth, as the surface is dirt-repellent due to its nature. The electrode stand included in the starter set can be used to hold two electrodes and adjust their height. This allows you to individually align your electrode to your container or glass for calibration and measurement. Special features of the Laqua PC2000 model (multi-parameter): The PC2000 is a combination of the ION2000 and the EC2000 with the advantage that you can measure all parameters with one device. Dual input, connection of 2 electrodes at the same time. pH-ORP wide measuring range; -2.000 to 20.000 pH  high accuracy; ± 0.003 pH  resolution: 0.1, 0.01 or 0.001 pH  continuous display of calibrated points  display of offset and slope - by segment and average up to 5 pH  calibration points ± 2000.0 mV  1-point redox calibration  automatically recognises and calibrates USA, NIST, NIST2 and DIN pH buffers  allows CUST (Custom) buffers for manual calibration  Conductivity-resistivity-TDS-salinity wide measuring range from 0.001μS/cm to 2,000 S/cm  allows automatic and manual conductivity calibrations  records individual and average calibration factors after conductivity calibration  Calculates resistance, TDS and salinity based on measured conductivity  7 conductivity ranges:   0.000 to 1.999 μS/cm (k = 0.1)  2.00 to 19.99 μS/cm (k = 0.1, 1)  20.0 to 199.9 μS/cm (k = 0.1, 1, 10)  200 to 1999 μS/cm (k = 0.1, 1, 10)  2.00 to 19.99 mS/cm (k = 0.1, 1, 10)  20.0 to 199.9 mS/cm (k = 1, 10)  0.200 to 2.000 S/cm (k = 10) Ions (ammonia, calcium, chloride, fluoride, nitrate, potassium)  Measurement ion-selective accepts combined and half-cell ion-selective electrodes wide measuring range from 0.000 μg/L to 9999 g/L accepts up to 5 user-defined ion calibration points choice of preferred units: μg/L - mg/L - g/L, ppm - ppt, mmol/L - mol/L Resolution of 4 significant digits after the decimal point with automatic scaling  Below we would like to show you in full the general functions of the Horiba LAQUA 2000 series: internal memory for up to 2000 data sets, measurement data with time and date information records and stores data in the unit memory based on a specified time interval a 4-digit password protects the meter set-up mode from unauthorised access data can be transferred to a computer and exported in the following formats CSV/Excel/PDF GLP/GMP  compliance of the instrument as data can be displayed, recorded and printed with date and time stamp on the instrument Software updates can be downloaded to the instrument Calibration reminder function, indicates that it is time to calibrate (alarm adjustable up to 90 days) Electrode holder is mounted on the meter and can hold up to 2 electrodes (rotates 360º and can be moved up and down 30cm). Electrode holder only included in the starter set.Displays measurement stability in measurement and calibration mode displays electrode condition based on calibration data smooth surface, easy cleaning RS-232/USB, therefore easy PC and printer connection and free instrument software Ergonomic design for easy viewing and operation Clearly labelled and easy-to-use ports for communication and measurement 5" digital display with backlight, shows all important measurement values and status Automatic calibration, recognises a wide range of standard solutionsadjustable switch-off time (up to 30 minutes) temperature compensation, the temperature in °C or °F is either automatically detected if a temperature sensor is connected (ATC mode) or manually entered by the user several measuring modes: Auto-Stable mode signals a stable measured value,Auto-Hold mode holds a stable measured valueReal Time mode continuously displays current readings small meter footprint of 155 x 150 mm, saves valuable space Temperature detection, easy display of sample temperature user selectable resolution, up to 3 digits Fixed and individual calibration pointsEasy navigation, navigate through the settings menu by up, down, right and left Scope of delivery: Measuring device with integrated electrode stand Universal mains adapter with 6 plugs Operating instructions Starter set version additionally contains 9625-10D refillable pH electrode with plastic body 9382-10D conductivity electrode with plastic body, cell constant k=1.0 pH 4, 7 and 10 buffer solutions & 3.33M KCl (1 x 250ml each) 84 µS/cm, 1413 µS/cm, 12.88 mS/cm (1 x 250ml each) with electrode holderFlow cell available in combination with 9371-10 stainless steel conductivity cell for ultrapure water measurement (300-2C-C) Manufacturer part number:Meter only   PC2000 (3200896964) Starter-set   PC2000-SR (1300098882)

Our The XS Instruments PC 7 Vio and 70 Vio handheld pH, millivolt, oxidation-reduction potential, conductivity, dissolved solids and temperature multiparameter meters with innovative high-resolution colour display are suitable for working in all conditions and offer you an integrated user-friendly guide in the form of the set-up and calibration mode. This allows for easy and intuitive use of the instrument by the user at any time, no matter how much experience the user has in handling the equipment. The PC 7 Vio and the PC 70 Vio, has an automatic pH calibration with USA and NIST buffers with up to three points for pH and one point for ORP. For the calibration of the conductivity electrode, you have up to five fixed points, as well as an individual calibration point. You are supported by intuitive symbols on the backlit screen, including display of the measurement stability (adjustable) and any errors. Another advantage is that you receive the multi-parameter measuring device in our professional measuring case, which contains the selected measuring electrodes, as well as our respective buffer solutions and the instructions. Complementary advantages of the 70 Vio version:GLP functions: Date and time, recall of calibration data and "Calibration due" function Integrated data logger for up to 1000 data, automatic and manual PC connection via USB for evaluation of measurement data (Micro-USB on the instrument side) via Data Link+ software Automatic brightness control of the display (prolongs battery life) Only 6 keys for easy control of all functions of the unit 230V power supply unit Manufacturer article number: 50110712

The high-quality multi-parameter hand-held meters of the LAQUA 200 series manufactured by Horiba are suitable for use in the field under any conditions and in direct daylight thanks to their monochrome LCD display with LED backlight.  Another advantage of these devices is that the hand-held meters are very shock and scratch resistant due to the special rubber coating and offer a long operating time due to the AA 2500 mAh batteries used. An IP67 certification, which certifies dust-tightness and protection against temporary submersion for up to 30 minutes at a water depth of one metre, rounds off the professional overall package in addition to the ergonomic design and simple operation.  In the certainty of producing high-quality devices, the manufacturer Horiba offers you a three-year guarantee on the hand-held measuring devices of the LAQUA 200 series.  During the measurements, the user is supported by the display of instructions in the form of smiley symbols. This is intended to prevent operating errors that can lead to implausible measurement results. Furthermore, the measuring device has only 9 keys and no menu texts. This design decision serves, among other things, to ensure that the device can be operated as easily as possible during discontinuous use or when used by other users. The Horiba meters have an electrode wear indicator, a lock function to "save" the current measured value on the display, automatic calibration functions and a self-diagnostic function. The fold-out stand on the back of the units means that you always have your hands free to carry out your measurements easily and safely.  Instruments marked as "Kit" are delivered in a reinforced measuring case for mobile use in the open air. This contains the exchangeable measuring electrode, the corresponding cable which is connected to the device and the electrode, as well as the suitable buffer or calibration solutions including instructions. If you want to carry out measurements of different parameters with different electrodes, you can simply connect the electrodes to each other at the upper part and then immerse them in the measuring solution.   PC220 kit version with GLP functions  Measurement data storage of 1000, instead of 500 data sets  Measurement and calibration data are stored GLP compliant with date and time stamp  PC communication via optional USB cable  RS232 printer function to print the measurement data  Scope of delivery: Hand-held meter PC210 or PC220 9652-10D gel pH electrode 9383-10D Ti/Pt Conductivity electrode (k=1.0) one each of 4.01, 7.00 pH buffer solution (60 ml)  one each of 1413 µS/cm, 12.88 mS/cm conductivity calibration solution (60 ml)  2x AA battery electrode adapter rugged measuring case  manual and quick reference guide Manufacturer article number: 3200779532 (PC210-K)  3200779533 (PC220-K)

The high-quality multi-parameter hand-held meters of the LAQUA 200 series manufactured by Horiba are suitable for use in the field under any conditions and in direct daylight thanks to their monochrome LCD display with LED backlight.  Another advantage of these devices is that the hand-held meters are very shock and scratch resistant due to the special rubber coating and offer a long operating time due to the AA 2500 mAh batteries used. An IP67 certification, which certifies dust-tightness and protection against temporary submersion for up to 30 minutes at a water depth of one metre, rounds off the professional overall package in addition to the ergonomic design and simple operation.  In the certainty of producing high-quality devices, the manufacturer Horiba offers you a three-year guarantee on the hand-held measuring devices of the LAQUA 200 series.  During the measurements, the user is supported by the display of instructions in the form of smiley symbols. This is intended to prevent operating errors that can lead to implausible measurement results. Furthermore, the measuring device has only 9 keys and no menu texts. This design decision serves, among other things, to ensure that the device can be operated as easily as possible during discontinuous use or when used by other users. The Horiba meters have an electrode wear indicator, a lock function to "save" the current measured value on the display, automatic calibration functions and a self-diagnostic function. The fold-out stand on the back of the units means that you always have your hands free to carry out your measurements easily and safely.  Instruments marked as "Kit" are delivered in a reinforced measuring case for mobile use in the open air. This contains the exchangeable measuring electrode, the corresponding cable which is connected to the device and the electrode, as well as the suitable buffer or calibration solutions including instructions. If you want to carry out measurements of different parameters with different electrodes, you can simply connect the electrodes to each other at the upper part and then immerse them in the measuring solution.   PH220 kit version with GLP functions  Measurement data storage of 1000, instead of 500 data sets  Measurement and calibration data are stored GLP compliant with date and time stamp  PC communication via optional USB cable  RS232 printer function to print the measurement data  Scope of delivery: Hand-held meter PH210 or PH220 9652-10D gel pH electrode one each of 4.01, 7.00 and 10.01 pH buffer solution (60 ml)  2x AA battery rugged measuring case  manual and quick reference guide Manufacturer article number: 3200779526 (PH210-K)  3200779527 (PH220-K)