Model: PH-010 - 2.0" LCD display - Folding PH/Temp meter of a unique design and excellent very convenient to use - User-friendly regulation measured various angles of liquid measurement and portability and automatic calibration in the measurement of temperature changes due to the error. Instruments measured by the ambient temperature relative humidity and PH value from the LCD screen can be directly read out - Measuring range: PH: 0.00~14.00 PH - RH: 10%~99%RH - Accuracy: PH: +/- 0.1PH; Temp: +/- 1 Degrees Celsius; RH: +/- 5% RH - Working temperature: -20~+60 Degrees Celsius - Powered by 4 x AG13 battery (included) - Screw driver and English user manual included