Parameters:1:the heating voltage: 5 ± 0.2V (AC · DC)2: current :5-10mA3: the detection concentration range: PH0-144: the detected temperature range :0-100Celsius5: response time: = 5S6:the stabilization time: = 60S7:component power consumption: = 0.5W8:the working temperature: -10 ~ 50Celsius (nominal temperature 20Celsius)9:Humidity: 95% RH (nominal humidity 65% RH)10 :Life: 3 years11:size: 42mm × 32mm × 20mm12:Weight Size: 25g13:output: analog voltage signal output PH value PH buffer solution preparation 4/7/9 standard buffer reagent kits PH 3 * 1 / setPH buffer 4/7/9 three kinds / set configuration needed distilled waterShipping list:1 * PH value acquisition module1 * PH composite electrode1 * The temperature sensor