The Hydrotester (HM Digital-COM-80S), 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.

FEATURES:

• Measures electrical conductivity (EC) and Dissolved Solids (TDS).
• Excellent for nutrient testing.
• Four scales: EC: µS, mS;  
• TDS: ppm, ppt
• Automatic Temperature Compensation (ATC)
• Water resistant
• Measurement Range: 0-9990 µS; 0-5000 ppm; 0-9.9 mS; 0-5.0 ppt
• 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.
• The meter can be recalibrated with digital calibration using the push buttons.
• Includes a protective cap and batteries.

SPECIFICATIONS:

EC Range: 0–9990 µS; 0–9.9 mS
TDS Range: 0–5000 ppm (mg/L); 0–5.0 ppt
Temperature Range: 1-80 °C; 33-176 °F
Resolution: 1 µS/ppm; 0.1 mS/ppt.
Temp. resolution: 0.1 °C/F
Accuracy: +/- 2%
EC-to-TDS Conversion Factor: NaCl (avg. of 0.5).
Calibration: Digital calibration by push button.
Probe: Fixed
Housing: Water-resistant
Power source: 3 x 1.5V button cell batteries (included)  (model LR44 or equivalent)
Dimensions: 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches)

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