Product size: 155mm*21mm*26mm Features: 1. Non-contact voltage detection 2. Sensitivity can be adjusted 3. Flashlight lighting function 4. Triple sound and light alarm on screen 5. Screen displays induction intensity AC detection range: 12V~1000V / 48V~1000V Detection frequency: 50Hz~60Hz Alarm mode: Sound and light alarm / display indication Lighting flashlight: White LED lighting Live wire and neutral judgment: Based on signal strength, stronger signal indicates live wire NCV sensitivity: Sensitivity can be adjusted using the S key LCD indicator screen: Red indicates live wire, green indicates neutral or ground wire Operating temperature: 0°C to 40°C Storage temperature: -10°C to 50°C, Humidity: ≤95% Dual sensitivity and range: Voltage tester detects voltages in two ranges: 12V–1000V / 48V–1000V (adjustable via S key). The NCV sensor detects voltage and displays intensity on the LED screen. Suitable for residential, commercial, and industrial applications Non-contact voltage tester: Insulated housing provides safety. As voltage signal strength changes, the indicator level, flash frequency, and beep rate change accordingly Auto power-off and flashlight function: Auto shut-off helps conserve battery. Built-in flashlight is useful during power outages or in dark environments. Pocket clip allows for convenient carrying Note: Measurements are manually taken; please allow 1–3 cm variation. Due to lighting and screen differences, slight color variations may occur. Actual product may vary slightly from images shown