1. PH measurement covers a wide range of applications in multiple fields and industries, suitable for laboratory PH measurement. 2. Intelligent interface, display calibration, measurement and data stability symbols and temperature, data lock mark and electrode slope value. 3. Intelligent measurement, support balance measurement mode and automatic temperature compensation, accurate measurement. 4. Automatic temperature compensation, PH value is different at different temperatures, automatic temperature compensation, eliminate measurement errors caused by ambient temperature differences, C/F units can be switched freely to meet different needs. 5. Intelligent function, support automatic identification of three specifications of NIST, USA, EURO, 3-point calibration function. Specification:PH874/PH873/PH872 Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage: AC100-240V Colour:White Material:ABS Package Contents: 1 * PH pen acidity meter kit 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.