Extech
Handheld test & measurement instruments — humidity, temperature, water quality, power, and more
Extech Conductivity / TDS
15 products
EC700 Waterproof pH, Conductivity, TDS, Salinity, Optical DO and Temp Meter
The Extech EC700 water quality tester kit is your all-in-one solution. With interchangeable probes, it measures pH, conductivity, TDS, salinity, and dissolved oxygen—making it perfect for aquaculture, laboratories, water treatment plants, and more. Its rugged IP67 waterproof design, large LCD display, and auto temperature compensation ensure reliable results wherever you go.
EC600 pH/mV/Temp/Cond/TDS Meter
The 7-in-1 EC600 Kit measures Conductivity, TDS, Salinity, Resistivity, pH, mV and Temperature. It has automatic one button calibration of 4, 7 and 10 pH with a choice of three point calibration for better accuracy and it provides automatic temperature compensation. One point conductivity calibration automatically recognizes eight calibration solutions from USA, Europe, and China. Memory stores up to 300 readings with series number, measured value and temperature. The meter has a large, blue, backlit LCD display screen with an auto power off function with disable that saves battery life. The IP57 waterproof housing protects it from the elements. Complete with pH/mV/Temperature electrode, polymer Conductivity cell, pH and Conductivity calibration solutions, batteries and hard carrying case.
EC210 Conductivity/TDS Meter, Handheld, Compact
The Extech EC210 is a compact, handheld Conductivity Meter. Its long-life, carbon rod combination electrode measures conductivity, TDS and temperature. The meter features three ranges for conductivity and TDS, plus adjustable temperature compensation factor to maintain accuracy. Units of measure include µS/cm, mS/cm, ppm, °F, and °C.
EC500 ExStik II Combination Cond/pH/TDS
The EC500 is Conductivity/TDS/Temperature Meter. Measures 5 parameters including Conductivity, TDS, Salinity, pH, and Temperature using one electrode. Analog bargraph indicates trends. Memory stores up to 25 labeled readings. Waterproof meter with high-accuracy multi-ranging sensor. Features Auto Power off with disable. Complete with meter and electrode, protective cap, sample cup, four 3V CR-2032 batteries, and 48" (1.2m) neckstrap.
EC400 ExStik Conductivity Meter
The Extech EC400 ExStik features six units of measure, internal memory that stores up to 15 labeled readings for easy recall, adjustable conductivity to TDS ratio factor from 0.4 to 1.0, and self-calibration upon power up. The EC400 incorporates the latest microprocessor chip technology and patented sensor technology to enable the simultaneous measurement of conductivity, TDS, salinity, and temperature. With the touch of a button the EC400 allows you the flexibility of interchangeable cell constants and has made the job of testing fast, accurate, and repeatable. Complete with meter and Conductivity cell, protective cap, sample cup, four CR2032 batteries, and 48"(1.2m) neckstrap.
RF20 Salinity Refractometer
The Extech RF20 measures the concentration of dissolved salt in fluids. It has a compact size and is easy to operate. Automatic Temperature Compensation (ATC) from 10°C to 30°C. Comes with case, calibration screwdriver, plastic pipette calibration solution, and user guide.
EC170 Salinity Meter
The EC170 is a Salinity Meter with Waterproof design (IP65). Measure salinity in aquaculture, environmental studies, ground water, koi ponds, irrigation, drinking water and other applications. Features a High accuracy multi-ranging sensor and Auto Power off with disable. Autoranging with 2 ranges of measurement. Data Hold, Auto Power Off and Low Battery Indication. Complete with salinity sensor, protective sensor cap, and 4 LR44 button batteries.
EC150 Conductivity/TDS Meter/Pen Style
The Extech EC150 is a Conductivity/TDS/Temperature Meter with high-accuracy multi-ranging sensor. It features auto power off with disable, adjustable conductivity to TDS ratio factor from 0.4 to 1.0, data hold and low battery indication. The waterproof design withstands wet environment and meets IP65 standard. Includes meter, protective sensor cap, and four LR44 button batteries.
EC701 Replacement Conductivity Probe with Protective Cap for EC700
Replacement Conductivity Probe with Protective Cap for EC700
EC510 ExStik II pH/Conductivity Temperature Meter Kit
The EC510 is a conductivity testing kit. Kit includes EC500 meter, 3 calibration standards, 3 pH buffer pouches plus rinse solution, 3 cups, batteries and carrying case. Measures 5 parameters including conductivity, TDS, salinity, pH and temperature using one electrode. Analog bargraph indicates trends. Memory stores up to 25 labeled readings. Adjustable Conductivity to TDS ratio from 0.4 to 1.0; 0.5 fixed Salinity ratio.
EC605 Polymer Cond. Cell for EC600/DO700
Cell for EC600/DO700. The Extech EC605 is a replacement or spare Conductivity Cell for use with the EC600 portable water conductivity meter and DO700 portable dissolved oxygen meter. Product comes with a six-month warranty.
EC505 Combination Conductivity/ pH Module
The EC505 is an ExStik Replacement pH Electrode/Conductivity Cell Module. For use with the Extech EC500 Waterproof ExStik II pH/Conductivity Meter. Measures conductivity, TDS, salinity, pH and temperature. Comes with a year warranty.
EC405 ExStik Conductivity Cell
The Extech EC405 is an ExStik Replacement Conductivity Cell Module. For use with the EC400 Conductivity/TDS/Salinity Meter. It is an easy to clean, rugged conductivity cell module. Product comes with a protective connector cap and a one year warranty.
EC-1413-P Conductivity Standard 2 Bottles -- 1 Pint Each
Conductivity Standard 2 Bottles -- 1 Pint Each
EC-84-P Conductivity Standard 2 Bottles -- 1 Pint Each
Conductivity Standard 2 Bottles -- 1 Pint Each
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