Feature:1. Wide Voltage Detection Range: This digital voltage tester accurately detects AC voltages from 12V to 300V, making it suitable for both residential and commercial electrical testing needs.2. NCV Sensing Technology: Equipped with noncontact voltage (NCV) sensing, the tester emits audible reminds when near live wires, allowing you to easily locate breaks in circuits.3. Torch and LCD Display: The built in flashlight illuminates dark areas, while the backlit LCD display ensures clear visibility of readings, making it suitable for low light work conditions.4. Dual Sound Visual: Upon touch with live wires, the tester displays Hi with a red backlit and emits urgent beeping sounds, enhancing safety with immediate reminds against electric shocks.5. Dual Use Screwdriver Bit: The detachable crossing screwdriver bit adds versatility to the tool, allowing you to work both electrical testing and tightening tasks conveniently, maximizing functionality.Specification:Item Type: Voltage Tester PenMaterial: ABSBattery: 1 x Battery (not included)AC Voltage: 12-300V, 50 60HzMeasurement Error: 12-300V (5%+3).Package List:1 x Voltage Detection Pen1 x User Manual