Feature: 1. The high‑definition backlit large display screen allows you to quickly read the measurement data. 2. The material is safe, fully sealed and insulated with ABS material to avoid the dangerous of electric shock. 3. Flashlight lighting, with LED floodlight at the probe, it can also be used at night. 4. The measurement is accurate, with a sensitive and accurate probe, and the data is reliable. 5. Rugged and durable, with high-quality materials, it can be used for a long time. Specification: Item Type: Electric Test Pen Material: ABS Color: Blue Battery: 1.5V 2xAAA Battery (Not Included) Purpose: Electrical Test AC voltage range About 12~1000V Frequency 50Hz/60Hz Alarm mode sound and light alarm Flashlight White LED floodlight Neutral wire and live wire judgment According to the signal strength, the strong signal is the live wire NCV sensitivity can increase sensitivity through the sensitivity adjustment button NCV Sensitivity Indication Method The tester uses different frequency alarm sounds and different color LED to indicate different sensitivity of high, medium and low. Operating temperature 0~40℃ Storage temperature 10~50℃ Altitude ＜2000m Safety level CE CAT.II 1000V/CATIV 600V . Package List: 1 x Electric Pen(Battery Not Included)1 x Manual Note: Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.