Suitable for home and electrical industry. Ideal for testing power cables, circuit breakers, wall sockets, junction boxes, fuses , etc. Just press the button and the white LED light will stay on when there is no voltage. Compact structure, safe and convenient to carry. Complete insulation with no exposed metal or conductive parts. Features: 1. Suitable for domestic and electrical industry. 2. Ideal for testing power cables, circuit breakers, wall outlets, junction boxes, fuses, etc. 3. Just press the button and the white LED light will stay on when there is no voltage. 4. The "beep" sound and the red flashing LED indicate the existence of voltage. 5. Complete insulation with no exposed metal or conductive parts. 6. Long lifespan and low power consumption. 7. Compact structure, safe and convenient to carry. Features: Measuring voltage: AC 60V to AC 1000V Operating temperature: - 10 to 50 Storage temperature: - 10 to 50 Operating humidity: 80% Pollution index: 2 Cleaning method: wipe with a damp cloth Operating power: 2 x no. 7 batteries (not included) Contents: 1 voltage test pen. Note: 1. When the pen feels or detects voltage, the white part of the pen will glow and buzz. It is easy to detect the fire line and know which line has dangerous voltage. 2. There is a button in the middle of the induction pen, press it, and there is a bright LED at the tip of the pen, which can be used as a flashlight. In the weak workplace, it is easy to complete the line testing work without the help of the flashlight! Number of products: 1 piece Color yellow Size: 152*23*15mm