Non-contact safety voltage tester can be tested without physical contact. The buzzer and flashing light remind at the same time and increase the safety factor. Isolation operation guarantees safety tests. Automatically differentiate between zero line and live line, also suitable for detecting line break in 110V and 220V power system. 9 sensitivity levels to choose from Voltage range is 12-1000 ACV. During use, the probe's NVC sensor automatically detects voltage intensity. active meter corresponding signal strength indicator based on p. Low voltage display If battery voltage is lower than approximately 2.6V, operation display flashes three times and buzzer sounds and automatically off. Please replace the battery. LCD display and LED flashlight Intensity display H/L, red is highest intensity. The white LED flashlight has high brightness and low power consumption, which illuminates the work area in the dark. illumination and probe are combined for easy measurement. Auto-off and portable pen hook After about 3 minutes without operation or signal detection, the voltage detector will automatically shut down to prolong the life of the battery and save energy. With the convenient portable pencil hook, you can easily remove and carry it. Portable Pencil Hook Comfortable and user-friendly design. For its weight or its overall design, this pen is as easy to carry as a normal pen. The design of the Pencil holder allows you to carry the pen anywhere. You can take it in your pocket after use without taking up much space Please install The battery correctly and pay attention to the positive and negative electrodes. installation error causes the voltage tester pin to stop working normally. Intelligent power consumption reminder Auto power off - After about 3 minutes without operation or signal detection, the voltage detector automatically shut off to save electricity. This can extend the battery life. Battery status indicator - It is helpful to use the pen safely. If the pen does not work well, you will be prompted on the LCD screen. Replace the battery in time to avoid using the pen when it is not powered. Shipping quantity: 1 piece