Feature 1、[Non Contact Detection] Our voltage detector adopts non contact detection design, can detect voltage by simply placing the tip near the socket or power cord. 2、[Sound and Light Prompt] When the voltage is detected, the detection light will flash red and the buzzer will emit a brief beep sound. 3、[Flashlight Function] This electrician voltage detector is designed with flashlight function, which can help you work better in the dark. 4、[Portable Design] Compact size and convenient pen clip design make it easy to carry in your pocket or tool box for on the go use. 5、[Wide Application] Our voltage tester is suitable for both professional electricians and DIY enthusiasts for troubleshooting electrical issues. Item Type: Non Contact Voltage Tester Material: ABS Battery: AAA x 1 (Not Included) Measurement Range: 12-300V Alarm Mode: Sound and Light Alarm Frequency: 50 60Hz Measurement Error: ±(5%+3) Humidity: ≤95% Altitude: ≤2000m Safety Level: CAT.II300V Package List 1 x Non Contact Voltage Tester 1 x User Manual