HMD PH-200 Digital Professional Waterproof 0-14 PH & Temperature Meter plastic Imported Measures pH and Temperature, Range: 0-14 pH, 0-80 C, 32-176 F Autoranging three point calibration with digital fine tuning Waterproof housing (IP-67 rating) Includes storage solution in a sponge embedded in a clear cap Auto-off function, data-hold function and low-battery indicator