HM DIGITAL COM-100 TDS EC Meter

Measures electrical conductivity (EC), total dissolved solids (TDS), and temperature.
UPGRADED: Four scales: µS, mS, ppm 0.5 (NaCl) Scale & 0.7 (442™) Scale
Automatic Temperature Compensation (ATC) using three temperature coefficients
Waterproof housing (IP-67 rating)
Digital Calibration (push button) to any point within the meter’s range
Auto-off function, data-hold function and low-battery indicator
Display: large and easy-to-read LCD screen includes simultaneous temperature reading.
Replaceable Sensor (model SP-C1)
Factory Calibrated: The COM-100 meter is calibrated with a 1413 µS solution.
UPGRADED: Includes translucent cap, 2 (AAA) batteries and lanyard.

EC Range: 0 – 9990 µS; 0 – 9.99 mS
TDS Range: 0 – 8560 ppm (0.7 Scale); 0 – 8.56 ppt (0.7 Scale)
0 – 5000 ppm (0.5 Scale); 0-5.00 ppt (0.5 Scale)
Temperature Range: 0-55 °C; 32-130°F
Resolution: 0-99: 0.1 µS/ppm/ 0.01mS/ppt; 100-999: 1 µS/ppm; 1000-9990: 10 µS/ppm. Temp. resolution is 0.1 °C/F
Accuracy: +/- 2%
EC to TDS Conversion Factor: Non-linear conversions for KCl, 442TM or NaCl solutions, selected by the user.
Probe: Detachable platinum electrodes
Housing: IP-67 Waterproof (submersible; floats)
UPGRADED: Power source: 2 x Triple A (AAA) included
Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)
Weight: 127g (4.5 oz)
UPC: 891144000007
442 is a registered trademark of the Myron L Company.