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Brand: HM Digital

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  • HM Digital Handheld TDS3 Tester

    TDS-3: Handheld TDS Meter with Carrying Case With its rugged design and build, the TDS-3 is an ideal meter (tool) that can be used for any application; Ranging from water purification to hydroponics to industrial wastewater treatment. It comes with a black vinyl carrying case, protecting it when carried in a toolbox. FEATURES Hold Function Auto-off Function (After 10 min.) Built-in digital thermometer Includes a carrying case with a belt clip Factory Calibrated with a 342 ppm NaCl solution. (Meter can be recalibrated with a mini-screwdriver). SPECIFICATION TDS Range: 0 – 9990 ppm (mg/L) Temp. Range: 0 – 80 degrees Celsius Resolution: 0-999: 1 ppm; 1000-9990: 10 ppm (indicated by a ‘x10’ icon) Temperature Resolution: 0.1 degree Celsius (Celsius only) Accuracy: +/- 2% EC-to-TDS Conversion Factor: NaCl (avg. 0.5) ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Fahrenheit) Power source: 2 x 1.5V button cell batteries (included) (LR44 or equivalent) Battery life: 1000 hours of usage Dimensions: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches) Weight with case: 76.5g (2.7 oz) Weight without case: 56.7g (2 oz)

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  • HM Digital pH 80 Meter

    PH-80: pH HydroTester Series The PH-80 has proven to be the MOST reliable pH meter in its price range. It has become a favorite in such applications as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water, and more. FEATURES Measures pH and Temperature One-touch automatic digital calibration Water-resistant Simultaneous temperature display Large LCD display Automatic Temperature Compensation (ATC) Auto-off function, data-hold function, and low-battery indicator Factory Calibrated: The PH-80 meter is factory calibration to pH 7.0. Includes a translucent cap, batteries, storage solution, and pH 7.0 buffer (powder) SPECIFICATION pH Range: 0 – 14 Temperature Range: 1-55 °C; 32-130 °F Resolution: 0.1 pH; Temperature resolution is 0.1 °C/F Accuracy: +/- 0.2 pH; Temperature accuracy is +/-2% Calibration: Digital automatic calibration (one point) Minimum EC/TDS: 10 µS/5 ppm Electrode: Glass sensor and reference tube electrodes Power source: 3 x 1.5V button cell batteries (model LR44 or equivalent; included) Dimensions: 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches) Weight: 53.9 g (1.9 oz) UPC: 891144000175

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