Conductivity, TDS or SDT, and Temperature Meter COM-100

COM-100: Waterproof EC / TDS / Temperature Conductivity Meter in one.

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Conductivity Meter (EC) Total Dissolved Solids and Temperature

Ideal for all water quality testing, water treatment, colloidal silver, laboratory and scientific testing, swimming pools and spas, ecology testing, boilers and cooling towers, water treatment and much more. The COM-100 is a professional level EC / TDS Electrical Conductivity meter at an unbeatable price.



Measures electrical conductivity (EC), total dissolved solids (TDS), and temperature.

Scales: Four scales: μS, mS, ppm, ppt (mS and ppt are new)

Three different non-linear EC-to-TDS conversion factors (KCl, 442TM, NaCl).

Automatic temperature compensation (ATC) using three temperature coefficients

Waterproof casing (IP-67 rating)

Measurement range: 0-9990 μS; 0-8560 ppm; 0-9.99 mS; 0-8.56 ppt

Digital calibration (push button) to any point within the range of the meter

Auto power off function, data hold function and low battery indicator

Display: Large, easy-to-read LCD screen that includes simultaneous temperature reading.

Replaceable sensor (SP-C1 model)

Factory Calibrated: The COM-100 meter is calibrated with a 1413 μS solution. The meter can be recalibrated with digital calibration using the push buttons, instead of a screwdriver.

Includes lid, batteries and lanyard.

See COM-100 meter comparisons with the competition Here.

Do you need help deciding which meter is right for you? See our TDS / EC Meter Selection Guide.

Technical information:

EC Range: 0 - 9990 µS; 0 - 9.99 mS

TDS range: 0 - 8560 ppm (mg / L); 0 - 8.56 ppt

Temperature range: 0-80 ° C; 32-176 ° F

Resolution: 0-99: 0.1 µS / ppm / mS / ppt; 100-999: 1 µS / ppm; 1000 - 9990: 10 μS / ppm. Temperature. Resolution is 0.1 ° C / F

Accuracy: +/- 2%

Conversion factor from Conductivity to TDS: non-linear conversions for user-selected KCl, 442TM or NaCl solutions.

Calibration: Digital calibration by push button.

Probe: detachable platinum electrodes

Enclosure: IP-67 Waterproof (submersible, floating)

Power Source: 3 x 1.5V Button Cell Batteries (Included) (Model LR44 or Equivalent)

Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)

Weight: 90.7g (3.2 oz)

Additional information

Weight 1 kg

Data sheet

COM-100 meter


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