1. 4‑digit LCD switch display, can measure PH, temperature, ORP value of a water at the same time. 2. Portable multifunctional water quality meter, suitable for swimming pool, breeding, laboratory, etc. 3. Complete functions, high accuracy, with microprocessor‑based meters, which can improve speed and accuracy. 4. Battery and automatic function error prevention system (BEPS) can extend battery life and prevent false readings. 5. Use three memory buffers for automatic calibration, easy to use. , portable and compact, easy to carry. Item Type: Water Quality Detector Range: PH Value: 0.00-14.00ph ORP:0-±1999mV Temperature: 0℃-100℃ Resolution: PH Value: 0.01pH ORP: 1mv Temperature: 0.1℃ Accuracy: PH Value: ±0.01pH ORP: ±5MV Temperature: ±0.5℃ Battery Voltage: 9V Battery Model: 6f22 Battery Capacity: 1300mAh (Built-In Battery) Temperature Compensation: 0℃-60℃ Working Temperature: 0℃-60℃ How to Use: 1. Insert the measuring probe into the instrument 2. Plug in the power connector 3. Put the monitoring head into the liquid to be monitored 4. The value can be displayed Color: As Shown Material: plastic Package Contents: 1 x Water Quality Detector 2 x Probe 1 x Screwdriver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.