... Anti high voltage circuit design Auto power off, data hold Unit symbol display CE certification DM201 3 1/2 ... ,improve the safety of the test.5,Max. measuring capacitance ,data hold.We are professional manufacturer with 20 years ... 10ΩLow battery indicationApprox less than 2.4 VData holdData hold/Max. holdAuto power offAbout 15minutesFunction protectFull function protectionInput10MΩSampling rate3times ...