This device detects if current is flowing through the cable without you having to touch it. Non-contact voltage detection, a convenient and convenient way to test power lines. With ABS and PVC material, the voltage tester can resist wear and pocket clip for easy handling. Phase/neutral conductors differ in near range. Automatic selection of 3 types of sensitivity (High, Medium, Low). The acoustic and visual alarm always protects your safety. Low voltage LED indicator light can warn you to replace the battery in time. Non-contact voltage detection, convenient and practical way to test power lines. The preset AC voltage measurement range is 48-1000V, it can also measure 12-1000V by adjusting the sensitivity. Phase/neutral conductors differ in the near range. Automatic selection of 3 types of sensitivity (High, Medium, Low). The acoustic and visual alarm always protects your safety. Flashlight: White LED lighting lamp The lamp function handheld can help you quickly find the problem in the dark when your house electrical circuit suddenly turns off at night and the surrounding area is completely dark. The auto-off function saves energy, while the lamp LED pocket enables operation even in dark corners. Low-voltage LED indicator light can warn you to replace the battery in time. With ABS and PVC material, the voltage tester can withstand wear and tear, and its pocket clip allows for easy handling. The lightweight material and the small size make it easy to carry. You can put it in your pocket or hang it on the tool bag.