Non-contact and pen shaped desigh,convenient to operate and carry. Dual mode operation.(Manual sensitivity adjustment and automatic) The sensitivity of the product can be adjusted freely according to the actual scene used. Has Induction dangerous voltage alarm, Live/Neutral wire distinction, Live Wire Breakpoint Locate, Continuity check, flashlight features etc. This product has a Self-test function at boot time. It can effectively detect whether the product can work normally and avoid wrong judgment. More Safety Has 8 LED indicators in 3 colors (Red/Yellow/Green):Automatic identification of high/medium/low voltage. Alarm mode:Sound and light (Red/Yellow/Green). LED spotlight, Battery low voltage reminder, Auto power off features. Safety level: II 1000V. Compliance with international safety standards. Colour:black Material:ABS Size:174 x 57 x 35mm Package Contents: 1 x (does not include 1X 9V 6F22 Battery) 1 x Chinese and English manual 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.