ProsKit NT-320-C Multifunctional Electrical Tester Pen Wire Break Detection Digital Display Induction Test Pen 1. Inductive measurement mode with dual audio and visual alerts, automatically distinguishes between neutral and live wires or locates break points 2. Auxiliary lighting function provides illumination in dark environments 3. Direct measurement mode displays voltage values 4. Removable battery compartment on the back cover for easy battery replacement 5. Portable pen clip design on the back for easy carrying 6. Only suitable for detecting single live wires; not suitable for detecting 2-core or 3-core wires with live, neutral, or ground wires together 7. Measurement range: AC 12V-300V +- (percent 5+ 3d) 5060Hz 8. Display: LCD 9. Alarm type: audible and visual alarm 10. Backlight: green light, red light 11. Auto power-off: about 5 minutes 12. Probe head type: Straight 3.5mm 13. Power supply: 1 AAA battery (not included) 14. Size: about 14.7 x 2.6 x 2.7 cm 15. Weight: about 38g