General description 2PCS Water Quality Tester is a versatile electronic device designed for measuring pH, TDS (Total Dissolved Solids), EC (Electrical Conductivity), and temperature in various water types. It features a high accuracy with a resolution of 0.01, making it suitable for applications such as swimming pools, drinking water, aquaculture, hydroponics, and water purification. Technical specifications Measuring range: 0.01-14.00 pH Resolution: 0.01 pH Accuracy: ±0.01 pH Automatic temperature compensation: 0 - 60°C / 32 - 140°F Battery: 2 x 1.5V LR44 (included) Dimensions (pH Meter): 15.5 x 3 x 1.5 cm Weight (pH Meter): 50 g / 0.11 lb Conductivity measuring range: 0-9999 µs/cm TDS measuring range: 0-9999 ppm Accuracy for TDS/EC: 2% Battery for TDS/EC Meter: 3V CR2032 (included) Dimensions (TDS/EC Meter): 15.4 x 3 x 1.4 cm Weight (TDS/EC Meter): 59 g / 0.13 lb Installation No tools are needed for installation; simply remove the protective cap and immerse the pH meter electrode in