1,[NON CONTACT] The detector supports smart induction electric field, safe and fast, does not need to worry about the detection of indoor wiring cables. 2,[WITH LED LIGHT] The electric detector is equipped with LED for lighting, and can be used at night or other dark environments for measurement. 3,[MAIN PURPOSES] The test pen can be used to detect AC voltage, neutral and live line judgment, breakpoint induction test, convenient and practical. 4,[MULTIPLE FUNCTION] The electric test pen has the functions of adjustable sensitivity, LED light, audible and visual alarm, automatic shutdown. 5,[PORTABLE DESIGN] The non contact detector has a pen holder design, compact in size, can be put in a bag or clip in a pocket to prevent loss. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.