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
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:3200164502 (10 Meter = U-52)
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:3200156563 (2 Meter = U-52G)
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:3200164500 (30 Meter = U-52G)
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:3200164506 (2 Meter = U-53)
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:3200164508 (30 Meter = U-53)
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:3200164501 (2 Meter = U-52)
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)
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:3200164504 (10 Meter = U-53G)
Horiba digital simulator X-51 pH, mV, ION, DO simulator (for periodic inspection of the electrode) X-51 Simulator gives theoretical equivalent input of electrodes for pH, mV, ion, and DO measuring instruments and checks linearity and temperature compensation functions of the instrument.The simulator makes equivalent voltage output for pH, mV, and ion, equivalent current output for DO (dissolved oxygen), and thermistor equivalent temperature resistance output for temperature.Manufacturer article number: 3014028368
Horiba X-52 Digital simulator X-52 Conductivity simulator (for periodic inspection of the electrode) X-52 Simulator gives theoretical equivalent input of electrodes for Conductivity measuring instruments and checks linearity and temperature compensation functions of the instrument. The simulator makes equivalent resistance output for conductivity and thermistor equivalent temperature resistance output for temperature. Manufacturer article number: 3014028370
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.
Der Milwaukee C66 Waterproof EC Pen überzeugt durch Robustheit und hohe Messbereiche. Mit ATC und Austauschsonde liefert er auch bei extremen Bedingungen präzise Leitfähigkeitswerte. Ideales Werkzeug für Aquaristik, Industrie oder Feldarbeit – langlebig, zuverlässig und leicht zu bedienen.
Milwaukee CD600 TDS-Tester – misst zuverlässig die Konzentration gelöster Feststoffe (TDS). Kristallklare Anzeigen, einfache Handhabung. Zuverlässig für Wasserqualitätskontrolle, Umweltanalyse & Hydroponik. Kompakt, präzise, praxistauglich.
Milwaukee CD601 EC-Pen – handliches Leitfähigkeitstool für schnelle & verlässliche Messungen. Messbereich 0–1990 µS/cm, Auflösung 10 µS/cm, mit ATC (Automatische Temperaturkompensation); Genauigkeit ±2 % FS. Einfache 1-Punkt-Kalibrierung, robust, ideal für Aquarien, Wasseranalysen & Feldmessungssituationen.
Der Milwaukee CD610 ist ein präziser TDS-Tester für Anwendungen im hohen Messbereich. Er ermittelt zuverlässig die Konzentration gelöster Feststoffe (Total Dissolved Solids) im Wasser und eignet sich ideal für industrielle Umgebungen, Aquakultur, Landwirtschaft oder Wasseraufbereitung mit hohem Mineralgehalt. Das kompakte, handliche Design ermöglicht eine einfache Bedienung, während die robuste Bauweise für langlebige Einsatzfähigkeit sorgt. Dank seines weiten Messbereichs ist der CD610 die perfekte Wahl, wenn Standard-TDS-Tester an ihre Grenzen stoßen.
Milwaukee CD611 Leitfähigkeitstester – ideal für präzise Leitfähigkeitsmessung im mittleren bis hohen Bereich. Automatische Temperaturkompensation sorgt für verlässliche Resultate. Robust konstruiert und leicht bedienbar – perfekt für Labor oder Außeneinsatz.
Milwaukee CD97 TDS-Pen – spezialisiert auf niedrige Konzentrationen gelöster Feststoffe. Extrem feine Auflösung & Sensitivität, ideal für Reinwasser- & Laboranwendungen. Schnell, exakt und ideal für hohe Ansprüche an Genauigkeit.
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
Der EC59 von Milwaukee ist ein vielseitiger, wasserdichter Tester zur Messung von Leitfähigkeit (EC), gelösten Feststoffen (TDS) und Temperatur. Mit automatischer Temperaturkompensation und einer wechselbaren Sonde ausgestattet, eignet er sich für Anwendungen in Wasseraufbereitung, Aquakultur und Hydroponik. Seine robuste Bauweise und einfache Bedienung machen ihn zum zuverlässigen Begleiter im Alltag.
Das Milwaukee EC60 ist die ideale Lösung für Messungen mit hohem Leitfähigkeitsbereich. Es kombiniert EC-, TDS- und Temperaturmessungen in einem wasserdichten Gerät und bietet automatische Temperaturkompensation. Die austauschbare Sonde sorgt für lange Einsatzdauer. Optimal für industrielle Anwendungen oder Umgebungen, in denen besonders hohe Salz- oder Mineralgehalte zu messen sind.
The MC810 MAX and MC811 MAX monitors provide measurement and 24 hour continious tracking of pH, conductivity (TDS with MC810 MAX and EC with MC811 MAX) and temperature.Quick to setup and simple to use, these monitors can be calibrated at one or two points for pH, and at one point for TDS (MC810 MAX) or EC (MC811 MAX). Results are monitored with 3 large LCD readouts, for simultaneous display of all three main parameters, and the temperature range is factory calibrated.The unit can be mounted above the sample to be tested or rested on a flat surface next to the sample, and the 2m probes cable length allows for a correct positioning and adequate viewing.An external switch atop the MC810 MAX converts EC conductivity to TDS (ppm) using a fixed 0.5 or 0.7 conversion factor.Features include:Easy Manual CalibrationNo Buttons to ProgramNo Waiting for Software ConfirmationEasy Wall Bracket Set-up (Brackets included)Backlit LCDTwo point pH calibrationOne point TDS/EC calibrationReplaceable pH electrode"Easy switch" TDS Conversion Technology between 0.5 and 0.7
The MC810 MAX and MC811 MAX monitors provide measurement and 24 hour continious tracking of pH, conductivity (TDS with MC810 MAX and EC with MC811 MAX) and temperature.Quick to setup and simple to use, these monitors can be calibrated at one or two points for pH, and at one point for TDS (MC810 MAX) or EC (MC811 MAX). Results are monitored with 3 large LCD readouts, for simultaneous display of all three main parameters, and the temperature range is factory calibrated.The unit can be mounted above the sample to be tested or rested on a flat surface next to the sample, and the 2m probes cable length allows for a correct positioning and adequate viewing.An external switch atop the MC810 MAX converts EC conductivity to TDS (ppm) using a fixed 0.5 or 0.7 conversion factor.Features include:Easy Manual CalibrationNo Buttons to ProgramNo Waiting for Software ConfirmationEasy Wall Bracket Set-up (Brackets included)Backlit LCDTwo point pH calibrationOne point TDS/EC calibrationReplaceable pH electrode"Easy switch" TDS Conversion Technology between 0.5 and 0.7
The MW301 is a portable conductivity (EC) meter with automatic temperature compensation.It is designed to meet the farmer's need for equipment suitable for the aggressive environments of agriculture and hydroponics.Conductivity testing provides a method to optimise chemical use and minimise operating costs.In agriculture, soil conductivity is tested before fertiliser is applied to determine the need in the field, and after fertilisation to determine its effectiveness.In hydroponics, EC measurement is ideal for determining the concentration of fertiliser in a solution.After the determination, the grower can adjust the nutrient formula for optimal plant growth. The MW301 has a measuring range of 0 to 1990 µS/cm with a resolution of 1 µS/cm.This conductivity meter comes complete with conductivity probe with 1 m (3.3') cable and calibration solution.Design featuresMeasuring range 0 to 1990 µS/cm Fast, easy to read results with large digital LCD displaySupplied with a conductivity probe attached to a 3-foot cableAccuracy to ±2Lightweight and portable300 hours of continuous battery life (battery included)MW301 PRO comes complete with SE510 EC probe, 20ml 1413 µS/cm bag of calibration solution, screwdriver for calibration, 9V battery and instructions.
MW302 is a high range portable conductivity meter (EC) with automatic temperature compensation.This meter is designed to meet the need for equipment suitable for agricultural and hydroponic environments and it is also an excellent meter for food, laboratory and water treatment applications.Conductivity testing provides a method for optimising chemical use and minimising operating costs and in hydroponics, conductivity measurement is ideal for determining the concentration of fertiliser in a solution.Once determined, one can adjust the nutrient formula for optimal plant growth.The MW302 has a measuring range of 0.0 to 10.0 mS/cm with a resolution of 0.1 mS/cm.This EC meter comes complete with conductivity probe with a 1m cable and calibration solution.