This multifunctional tool features the function of NCV AC voltage detector, ambient temperature tester, / neutral wire discrimination and flashlight. With LCD screen for easy reading and compact size for easy operation, it can be widely used in electrical testing, car repairing and more applications. Non-contact AC voltage detection or insert the tester's probe into the outlet, with alarm buzzer function. And the LED flashlight ensures safety work in dark environments. / neutral wire discrimination: the tester's detection induction is strong when it's a wire, and the induction is weak or there is no induction signal when it's a neutral wire. range of AC voltage detection: low sensitivity mode (48~1000V)/ high sensitivity mode (12~1000V). It's recommended to use the low sensitivity mode for detection first. Powered by 2 AAA batteries (not included), with battery undervoltage indication. Without operation or voltage signal, it will auto shutdown in about 5 minutes to save battery. Material: plastic colour: black Package Contents: 1 x Voltmeter digital ammeter 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.