Features: Multiple Measurement Range: the meter is a portable intelligent one that can automatically identify the ACV, DCV, resistance and capacitance and choose the range accordingly. Easy to Use: the users with no professional physical knowledge can measure the technical data of electrical appliance easily. User-friendly Design: the meter has illumination, backlight function and magnetic adherence design can provide lots of help to air conditioner maintenance engineers. Safety Assurance: all the ranges have overload protection of 250V AC/DC, and it complies with the IEC 61010 600V CATLL and pollution grade 2 standards. Easy-to-read Digital Display: the large LCD screen has analog display which can show the variation tends of the measurements. 5999 display makes the readings more accurate. More Functions: auto power-off, backlit, illumination, diode test, NCV test, live wire detect, true RMS, low battery indicator, alarm, etc., very versatile for the electrician and household usage. Specifications: Material: ABS DCV: 0.5~600V ACV: 1~600V Resistor: 1~10M CAP: 600uF/6000uF Hz: 10~1000Hz Display: 6000 counts Working Condition: 0~40,