brand new and high quality Features: 1. It is adjustable sensitivity for different measurement applications and portable size for convenient carrying. 2. With the sensitivity adjustment function, you can use the volt tester without worrying that it would make noise under no operation. 3. Just put the sensitivity adjusted button to adjust the sensitivity (Low, Mid, High) to measure the voltage. 4. 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. 5. LED light design makes it work even under dark evironment. It is an for ideal tool for electiric worker. 6. The volt tester is equipped with an audible and visual alarm to guard your safety. 7. LCD Display: AC high pressure symbol, Low power reminding, Distinguish null line or live line. Specification: Material: ABS Type: Non-Contact AC Voltage Detector Color: Shown as pictures Size: 20 x 6 x 6cm(7.87 x 2.36 x 2.36in) Quantity: 1 Pc Electrical Paramter: AC Voltage: 12V -1000V Frequency: 50Hz/60Hz Alarm Mode: Voice/Light/Analog Display: LCD Display Screen Flashlight: Yes Shape Of Probe: Flat Low Battery Indicator: Yes Live Wire And Zero Line: Voice/Light/LCD Analog Display Non-Contact Sensitivity: Adjustable Auto Power-Off: Automatically shut down when there is no induction or operation for 3 minutes. Powered By: 2Pcs x AAA Batter(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! Package includes: 1Pc x Non-Contact AC Voltage Detector(Battery is not included.)