ITEM NAME:Safe Voltage Tester Pen 12V 1000V Adjustable Sensitivity Non Contact Home Description: Non-Contact: Inductive test pen, multi-functional non-contact detection. Can check cable and the socket voltage or check the disconnection position along the cable. Material: ABS insulation material to prevent electric shock danger, and greatly improve the safety level. Alarm Detection: Sound and light alarm, when the AC voltage is detected, the LED flashes red and emit a rapid beep sound. Zero/Fire Wire Judgment: Slow beep, when test pen inserted into the hole, no flashing red, this is zero line; When test pencil inserted into the hole, beep sound, the red light flashes to indicate fire wire. Auto Shut-down: If it is not used within three minutes, the pen will automatically shut it down. With Flashlight function, can still work in a dark environment. Specification: Material: PC, ABS Color: Black Size(LxWxH): About 157x26.4x23mm.When test pencil inserted into the hole, beep sound, the red light flashes to indicate fire wire. Auto Shut-down: If it is not used within three minutes, the pen will automatically shut it down. Anyway we will try our best to avoid this kind of thing.