Features Easy to Test: Support automatic testing, on-off line test, circuit breakpoint test, DC and AC power detection, and high voltage detection. 【Wide Usage】Allows for wide use in electrical testing of household appliances, automobiles, industrial machines and many other equipment. Wide testing range: can directly test 12-250V AC and DC circuits, as well as indirect detection of neutral line, phase line and so on. Smart Operation: Equipped with digital display and indicator light, the voltage detector pen also has an alloy steel tip and a clamp design for work. Simple transportation: It has compact size and light weight, the volt tester pen without battery is very convenient to carry with you. Specification: Item Type: Voltage Detector Pen Material: C45 steel, ABS Voltage test range: AC 12-250V DC Package List: 1 x Voltage Detector Pen Note: When testing, do not touch both contact buttons of the test pen at the same time to avoid inaccurate testing. Package List 1 x Voltage Detector Pen