HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
The COM-80 is an economically priced, reliable EC/TDS meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.
Measures electrical conductivity (EC), total dissolved solids (TDS). Â Excellent for hydroponic nutrient testing.
Four scales: EC: µS, mS;  TDS: ppm, ppt Â
Automatic Temperature Compensation (ATC)
Water resistant
Measurement Range: 0-9990 µS; 0-5000 ppm; 0-9.9 mS; 0-5.0 pptÂ
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
Factory Calibrated: The COM-80 meter is calibrated with a 1413 µS solution—can be recalibrated with digital calibration using the push buttons
Includes a protective cap and batteries.
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SPECIFICATIONS
EC Range: 0-9990 µS; 0-9.9 mS Â
TDS Range: 0-5000 ppm (mg/L); 0-5.0 ppt Â
Temperature Range: 1-80°C/33-176°FÂ
Resolution: 1 µS/ppm; 0.1 mS/ppt  Â
   Temp. resolution: 0.1°C/FÂ
Accuracy:Â +/- 2%Â
EC-to-TDS Conversion Factor:Â NaCl (avg of 0.5)Â
Calibration:Â Digital calibration by push buttonÂ
Probe:Â FixedÂ
Housing:Â Water resistant
Power source:Â 3 x 1.5V button cell batteries (included)Â (model LR44 or equivalent)
Dimensions:Â 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches)Â
Weight:Â 53.9 g (1.9 oz)
1 year warranty
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