Features: Handheld Design: Handheld design, easy and comfortable to operate. High Accuracy: High accuracy design, digital display, easy to read. Function: Can help you to test the water quality and for . Material: Made of ABS material, light weight and good performance. Applicable Usage: Suitable for swimming pool, spa, hot tub, etc.. Specification: Material: ABS Color: White Measuring range: 0 ~ 14.00ph pH Temperature: 0°C-50°C Accuracy: ±0.03ph pH Temperature: ±0.5°C (1°C) Automatic temperature compensation: 0°C-50°C Energy saving: Automatic shutdown after 4 minutes Calibration point: automatic calibration Size: About 187*37 mm/7.4*1.5 inch(L*D) Battery: 4*1.5V Button Battery(Included) Package included: 1 * Digital PH Meter 1 * Calibration powder 1 * User Manual