Digital Display: Features a bright blue digital screen for accurate Electric readings from 12 220V, eliminating guesswork with traditional Tester pens and providing Fast visual confirmation of electrical Position Live / Neutral Wire Identification: Quickly distinguishes live and neutral wires with Hearable and visual alarms, making it easy for both Professional and beginners to determine wire conditions safely Circuits Continuity Testing: Verifies Circuits connectivity with built in continuity check functionality, essential for diagnosing wiring issues or verifying device Connection during maintenance Not Breakpoints Detections: Enables Easy wire Breakpoints location by moving the pen along cables—signal disappearance pinpoints faults without direct, streamlining troubleshooting Auto Check & LED illuminates: Includes a pre use Auto Tester to secure reliability and an integrated LED light for clear visibility in dark environments, enhancing during electrical inspections, Manufacturer: Oxxggkao