HM Digital Waterproof EC/TDS/Temp HydroTester

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.

Features:
• Measures electrical conductivity (EC), total 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)
• Weight: 53.9g (1.9 oz)