Kkmoon HABOTEST Digital Voltage Tester Pen Screwdriver 12V-300V AC Voltage Detector Slotted Screwdriver black

Features: SENSING MODE MEASUREMENT(NCV): The built-in sensor, when detecting nearby AC voltage, will cause the red light to flash and emit an ble alarm that increases with the signal strength. Additionally, when the signal is strong, the display screen will show ---U and ---HI . Using this function, you can locate breakpoints in electrical wires. AC VOLTAGE AND LIVENEUTRAL WIRE DETECTION: Press the VOLTAGE button and insert the screw driver bit into the AC electrical socket to obtain the voltage value, and it will differentiate between the live wire and neutral wire based on the voltage level. BATTERY POSITIVE POLE DETECTION: With the right hand, press and hold the CONNECT button on the tester pen, then with the left hand, make contact wi