This screwdriver testing pen with polarity identification for distinguish positive and terminals efficiently. Features advanced to identify and differentiate between live and neutral wires in circuits for precise electrical troubleshooting. Boasts IP56 waterproof rating to damage and high brightness LEDs with increased resistance for clear visibility and extended safe testing ranging. Includes an auto testing feature to verify operational detect circuit connectivity or breaks, ensuring reliably every time. Package includes: 1pcs Electrical Tester Pen