Material: ABSType: Non-Contact AC Voltage DetectorElectrical Paramter:AC Voltage: 12V -1000VAlarm Mode: Voice/Light/AnalogDisplay: LCD Display ScreenFlashlight: YesLow Battery Indicator: YesLive Wire And Zero Line: Voice/Light/LCD Analog DisplayNon-Contact Sensitivity: AdjustablePowered By: 2Pcs x AAA Batter(Not Included)It is adjustable sensitivity for different measurement applications and portable size for convenient carrying.With the sensitivity adjustment function, you can use the volt tester without worrying that it would make noise under no operation.Just put the sensitivity adjusted button to adjust the sensitivity (Low, Mid, High) to measure the voltage.If the device is not operated within five minutes, it will turn off automatically. Rotate the top black button on the device to quickly and easily replace the battery if the device is out of power.LED light design makes it work even under dark evironment. It is an ideal tool for electiric worker.ackage includes:1Pc x Non-Contact AC Voltage Detector(Battery is not included.)Note:1. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!