VC1018 12V-1000V Touch-Free Electric Sensor Test pen digital AC voltage meter Summer detector with LCD screen. With flashlight / AC voltage induction / power outage detection / zero line recognition / high and low sensitivity. Breaking point detection: detection along the line, where there is no breaking point, there is a sum signal full grid, where the breaking point is only 2 grids and no summer. High precision sensor pen: High quality PC protection, strong and not easy to break more precise detection, sensitive/stable/intelligent. High and low sensitivity: Press the "S" button to adjust high or low sensitivity, the green screen is low sensitive and the yellow screen is highly sensitive. Touch -free detection: When the electrical test pen detects the nearby gear voltage, the screen will show red and full signal, and a quick beep is heard. Specification: Model: VC1018. Material: ABS. Automatic shutdown: 5 minutes (no function). Battery: 2 x AAA (not included). AC Voltage Area: 12-1000V AC50 / 60Hz. Flashlight: Yes. Zero line test: Yes. Detecting power outage: Yes. Sensitivity test: Yes. The package contains: 1 x test pen.