Voltage Detector Sensor Tester Indicator Pen with Light

Red lndicator Light (special function)
1.Zero Fire Wire Identification
2.Break point checking
3.Non contact security test
4.Flashlight lighting
5.Easy to carry anywhere
6.Sensitivity switch:high low sensitivity switch
7.Automatic shut-down
8.Power Supply: 2 X 1.5V AAA Batteries(not included)