Features 1、With titanium alloy probe, anti‑rust and anti‑corrosion, measurement value is more accurate. 2、3 in 1 design, support TDS, EC conductivity and temperature detection. 3、Support 5 minutes automatic shutdown function, reduce battery consumption. 4、Equipped with high‑definition LED display, the values are more readable and sensitive. 5、Water quality detection pen, easy to measure water quality, compact and portable, long‑term use. Specification Item Type: Water Quality Detector Material: ABS, Titanium Alloy Probe Model: A1 Function: TDS Water Quality Detection, EC Conductivity Detection, Temperature Detection TDS Measurement Range: 0-9999ppm Temperature Measurement Range: 0.1-80℃ (32.0-176.0℉) Error: ± 2% Battery: 1Pc 3V CR2032 Button Battery (Battery Not Included) Package List 1 x Water Quality Detector (Battery Not Included) 1 x Manual