ITEM NAME:AC 12-1000V Non Contact Voltage Tester Pen Live Line Null Detector with LED A#S Product Description Description: Multi-functional AC 12-1000V Non Contact Voltage Tester Pen Live Line Null Live Detector with LED Light Sound Alarm Features: 1. It can judge the zero line and the fire line of alternating current. 2. It can distinguish the strength of electric field. 3. Lighting function. 4. 5 minutes automatic shutdown function. 5. Sound and light alarm. Specifications: AC voltage range: 12-1000V Frequency: 50Hz/60Hz Alarm mode: Sound and light alarm Flashlight: white LED light Power supply: 2x1.5V AAA batteries (not included) Material: plastic NVC sensitivity: automatic selection of 3 sensitivity (high medium low) NVC sensitivity index method: through the alarm sound speed and the color of the LED lamp. Product size: 156*20*20mm/6.14*0.79*0.79" Weight: 45g Service temperature: 0-40℃ Storage temperature: -10-50℃ Altitude: