Characteristics:

1. Sensor: Electrical Outlet Wall Socket Voltage Detector Sensor Test Pen 90-1000V AC, if the tip lights up red and the device beeps, it means there is voltage.

2. Compact size: Fully insulated, no exposed metal or conductive parts, long life and low power consumption, compact, safe and easy to use and carry.

3. Practical Tools: Ideal for testing circuit breakers, power distribution boxes, fuses, etc. Electricians, maintenance personnel, service personnel, and homeowners can quickly test live circuits on the job site or at home.

4. High-quality material: Made of high-quality ABS material, with meticulous workmanship and high quality, it is your good choice. Fully insulated, with no exposed metal or conductive parts. Strict inspection to ensure good quality.

5. Safe and reliable: Frequency range 50-500Hz, test voltage range 90-1000V AC, CAT II 1000V safety level, not including 2 AAA batteries for power supply, button design, white LED is always on when there is no voltage, "beep" sound, flashing red LED indicates that there is voltage.