CZDANG F8 Induction Acoustic-Optic Alarm Voltage Tester Pen Digital Display Voltage Detector For Household Use

1. If no buttons are pressed or operations are detected for an extended period, the device will automatically shut down after approximately 3 minutes to prevent unnecessary battery drain and extend battery life 2. The probe tip features a built-in LED light, providing additional illumination for maintenance work in dimly lit electrical panels, cable trays, and suspended ceilings 3. Equipped with a dual-purpose flathead and Phillips screwdriver bit, it combines voltage testing with basic screw removal and installation functions 4. The battery compartment features a snap-on rear cover, making battery replacement simple; if the battery runs out during outdoor work, you can quickly replace it to resume operation 5. Equipped with a high-precision smart recognition chip for sensitive detection and stable signals 6. NCV (Non-Contact Voltage) graded visual indicators: red indicates a strong electric field, dark green indicates a medium electric field, and light green indicates a weak electric field, allowing you to determine whether a circuit is live from a distance 7. Metal clip on the side of the pen body for easy carrying in workwear pockets 8. Insulated, non-slip housing ensures safer use during high-voltage testing Parameters 1. Voltage range for measurement: non-contact: 30 - 1000V; Contact: 11V - 450V 2. Frequency: 50 - 60Hz 3. Alarm method: screen backlight color change + sound 4. Identification of live and neutral wires: the wire with higher electric field intensity or higher voltage value is the live wire 5. On-off beeping: when the wire is connected: the screen displays 0 and the buzzer emits sound 6. Battery low voltage: when in use, the screen displays LO indicating insufficient battery power and a battery replacement is required 7. Operating temperature: 0 - 40 degrees Celsius 8. Storage temperature: 10 - 50 degrees Celsius 9. Altitude: less than 2000m 10. Automatic shutdown: automatically shuts down after no operation for 3 minutes 11. Power supply: 1.5V AAA x 2 (battery not included in shipment) 12. Flashlight: white LED light 13. Material: ABS