This waterproof meter has an accuracy of +/- 2% so is comparable with most EC meters, however being waterproof gives it a defence against the most common cause of meter failure. It measures electrical conductivity (EC), total dissolved solids (TDS). It features automatic temperature compensation (ATC) with a measurement range of 0-9990 µS; 0-5000 ppm; 0-9.9 mS; 0-5.0 ppt.
The EC pen can be digitally calibrated to any point within the meter's range, has an auto-off function, data-hold function and low-battery indicator. It has a large and easy-to-read LCD screen which includes simultaneous temperature reading. The COM-100 meter is calibrated with a 1413 µS solution. The meter can be recalibrated with digital calibration using the push buttons.
Includes a protective cap and batteries.