Features: Easily and quickly detect AC voltages with visual and auditory voltage indicators, ranging from 90V to 1000V. LED work lights with high brightness and low power consumption help illuminate the workspace in the dark. It can be tested without touching the object under test, making it safer and easier to use. It helps to test AC voltage, circuit breakpoint test and test live line, zero line. It will automatically turn off after 3 minutes without operation or signal to save power. The convenient pencil hook allows you to carry your pen as much as you like, and the compact and lightweight design makes it take up very little space. The tester has one/two buttons for easy use. Short press the button to turn on and turn on the LED flashlight. Long press the button to turn on/off the tester. Non-contact testing of cables, wires, circuit breakers, lighting equipment, sockets, etc. Ideal for testing power cables, circuit breakers, wall sockets, junction boxes, etc. Specification: 100% brand new with high quality AC voltage detection: 90V-1000V AC Alarm mode: sound and light alarm Lighting torch: white LED light Zero live line judgment: live line and neutral line are measured separately, live line alarm, neutral line does not alarm Instruction mode: Alarm sound of different frequencies and red flash light Probe shape: flat Switch on and off: short press to turn on/short press again to turn on the flashlight/long press for 3 seconds to turn off Battery: 2x1.5vAAA(not included) Size: 156*20mm Package Included: 1 x non-contact tester (Battery is not included)