TDS Meter - ideal Tool for Water Density

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. FEATURES: Hold Function Auto-off Function (After 10 min.) Built-in digital thermometer Includes a carrying case with belt clip Factory Calibrated with a 342 ppm NaCl solution. (Meter can be recalibrated with a mini-screwdriver). Excellent: Less than 300 mg/L (or ppm). Good: Between 300 and 600 mg/L. Fair: Between 600 and 900 mg/L. Poor: Between 900 and 1200 mg/L. Unacceptable: Greater than 1200 mg/L. WHO Guidelines: The World Health Organization (WHO) suggests that TDS levels should be below 600 mg/L for palatability, with 300-500 mg/L being optimal. Low TDS water: While low TDS water is not necessarily harmful, it might lack essential minerals and taste flat. High TDS water: Water with high TDS levels can have an unpleasant taste and odor, and excessive TDS may indicate the presence of harmful pollutants. Specifications: 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)