The 3-in-1 Digital Water Tester is a versatile and highly accurate tool for evaluating water purity and quality. It offers readings for TDS, EC, and temperature with quick results and auto-calibrated performance. Designed for convenience with its pocket-size build and user-friendly interface, it is ideal for use in drinking water testing, hydroponics, aquaculture, laboratory analysis, and more. Its backlit LCD and HOLD function make reading results fast and easy, even in low light. Main Features 3-in-1 function: Measures TDS (Total Dissolved Solids), EC (Electrical Conductivity), and Temperature Automatic Temperature Compensation (ATC) and Auto Shut off after 5 minutes of inactivity Multi-mode Display: 4 display modes with °C/°F options and TDS/EC values Data Hold Function for locking readings and easy recording Compact and Portable design—ideal for on-the-go water testing Specifications Functions: TDS (ppm), EC (μs/cm), Temperature (°C/°F) Display Modes: TDS (ppm) + °C EC (μs/cm) + °C TDS (ppm) + °F EC (μs/cm) + °F Measurement Range: TDS: 0 – 9999 ppm EC: 0 – 9999 μs/cm Temperature: 0.1 – 80.0°C / 32.0 – 176.0°F Accuracy: ±2% Auto Shut off: After 5 minutes of no use Data Lock Function: Yes (HOLD button) Power Supply: CR2032 button cell (DC3V, 230mAh, not included) Net Weight: 55g Portability: Pocket-size, ideal for field or lab use