HM Digital COM-100 EC/TDS/Temp Meter

Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature.
Three different calibration options (KCl, 442TM, NaCl), each with its own non-linear conversion factor.
Automatic Temperature Compensation (ATC) using three temperature coefficients.
Waterproof housing.
Measurement Range: 0-9990 µS; 0-8560 ppm (auto-ranging).
Digital Calibration (push button).
Auto-off function, data-hold function and low-battery indicator.
Display: large and easy-to-read LCD screen includes simultaneous temperature reading.
Factory Calibrated: The COM-100 meter is calibrated with a 1413 µS solution.
The meter can be recalibrate with digital calibration using the push buttons, rather than a screwdriver. Includes a cap, batteries and lanyard.