1AC-D Non-Contact AC Voltage Tester Pen

The 1AC-D is a non-contact AC voltage tester pen designed for electricians, maintenance technicians, and DIY users who need to quickly and safely verify the presence of live AC voltage. It uses electromagnetic induction technology to detect voltage without requiring direct contact with wires or terminals, reducing the risk of electric shock. The tester covers a wide detection range of 90V to 1000V AC and operates across a frequency range of 50Hz to 500Hz. When voltage is detected, the device provides both a flashing red LED visual alert and an audible beep, ensuring clear confirmation even in noisy or dimly lit environments. A built-in white LED flashlight helps illuminate dark work areas. The pen is powered by two AAA 1.5V batteries (not included) and offers up to 6 hours of continuous use. Its compact ABS plastic body measures 139 × 25 × 16.8 mm and carries an IP54 rating for dust and splash resistance, along with IEC 1010 safety compliance. The 1AC-D is ideal for tracing live wires, identifying break points in insulated cables, testing wall sockets and circuit breakers, and distinguishing live from neutral wires in electrical panels. This non-contact voltage tester pen is a practical safety tool for both professional and home electrical work.