Digital Multimeter Sunshine DT-19NProduct DescriptionMaterial-AluminumDimensions:19*11.5*4 cmOperating Mode:Manual Operating Temperature:0 - 40 °C DisplayWorking mode:Digital displayFunction -Resistance measurement, Temperature measurement, Diode, Buzzer alarm.Electrionic meter can measure AC/DC voltage, AC/DC current, resistance, frequency, continuity, diode and etc.Back Light for Display, TRMS Value, Small light weight design - Pocket Size, Easy to carryBacklight and Hold function with NCV .