HM Digital COM-80 Pen Style TDS/EC/Temp Meter

The COM-80 is easily the most advanced economically priced, reliable EC/TDS meter on the market. With its versatility and durability, it 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 total dissolved solids (TDS). Excellent for nutrient testing
• Four scales: EC: µS, mS; TDS: ppm, 0.5 (NaCl) & 0.7 (442™)
• Automatic Temperature Compensation (ATC)
• Water-resistant
• 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
• Includes a protective cap and batteries

Specification:

• EC Range: 0 - 9990 µS; 0 - 9.9 mS
• TDS Range: 0 - 5000 ppm (0.5 Scale) ; 0-8560 ppm (0.7 Scale)
• Temperature Range: 1-80 °C; 33-176 °F
• Resolution: 1 µS/ppm; 0.1 mS
• Temp. Resolution: 0.1 °C/F
• Accuracy: +/- 2%
• Power source: 3 x 1.5V button cell batteries (LR44 or equivalent is included)
• 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)