High Precision, intelligence Digital Multimeter. Automatic shutdown ; Zero fire line ; Data retention AC Voltage Measurement :Power on automatic recognition ,measurement range 0-600V DC Voltage Measurement:Power on automatic recognition, measurementrange 0-600V Resistance Measurement:Automatic measurement upon startup measurement range 1 -40M Diode Measurement:Quick testing makes measurement easier Parameter function: DC voltage: 0-600V AC voltage: 0-600V Resistance: 1 Ω -4000 Ω Diode: YES On/Off Beep: YES NCV: YES Zero line recognition: YES Automatic recognition: YES Backlight: YES Flashlight: YES Display screen: 4000 counts Data retention: Battery: 1.5V AAA * 2 Tips: The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Set: B Material: plastic colour: black Package Contents: 1 x digital multimeter tester 1 x multimeter pen set (without battery) 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.