VC1018 12V-1000V Touch-Free Electric Sensor Test Pen Digital AC Voltage Meter with LCD Screen Features flashlight, AC voltage induction, power outage detection, neutral line recognition, and high/low sensitivity settings Break point detection: Continuous signal display along the line; signal drops to two bars at break points with no continuity High-precision sensor pen with durable PC housing for accurate, stable, and reliable detection Switch between high and low sensitivity by pressing the "S" button; green display indicates low sensitivity, yellow indicates high sensitivity Non-contact voltage detection: Screen turns red with full signal bars and emits a quick beep when voltage is detected nearby Specifications: Model: VC1018 Material: ABS Auto power-off: 5 minutes (no operation) Battery: 2 x AAA (not included) AC Voltage Range: 12-1000V AC 50/60Hz Built-in flashlight: Yes Neutral line test: Yes Power outage detection: Yes Sensitivity test: Yes Package includes: 1 x Test Pen