Item Type: PH Meter _x000D_ Material: ABS_x000D_ Weight: Approx. 80g / 2.8oz_x000D_ Battery Type: Built in button battery (shipped with built in button battery)_x000D_ Battery Type: CR2032 button cell_x000D_ Battery Capacity: 300mAh x 1 1High Detection Accuracy: This PH meter adopts 0.01PH detection accuracy and will provide you the accurate number. 2HD LCD Display: PH meter detector pen adopts HD LCD display, clear and easy for you to understand the operating. 3One Button Operation: PH meter tester pen is with 1 button operating and the button have been tested thousands of times and durable. 4Contained Protection Fluid: PH meter detector pen is with high sensitivity probe and contained protection fluid. 5Longer Use Time: PH meter adopts large capacity CR2032 button battery, longer use time, with 300mAh battery capacity. 1 x PH Meter 1 x English Manual 3 x PH Test Paper 1 x Storage Box