3 In 1 EC & TDS TEMP Conductivity MeterThis is a digital TDS tester to test the filter water quality purity, to check the performance of your water filter, to check for hardness (1grain=17ppm), to make sure you always drink pure water.Feature of the TDS & EC Temp MeterHold FunctionAuto-off Function (After 10 min.)Built-in digital thermometerIncludes a carrying case with belt clipFactory Calibrated with a 342 ppm NaCl solution. (Meter can be recalibrated with a mini-screwdriver).Specification of 3 in 1 MeterTDS Range: 0 – 9990 ppm (mg/L)Range: 0 – 80 degrees CelsiusResolution: 0-999: 1 ppm; 1000-9990: 10 ppm (indicated by a ‘x10’ icon)Temperature Resolution: 0.1 degree Celsius (Celsius only)Accuracy: /- 2�-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 usageDimensions: 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)Country of Origin: China
