Features: 1. Non-contact voltage detection and non-metallic pen body make sure that you won't be shocked by the electricity. 2. Equipped with flashlight, convenient for maintenance at darkness. 3. Testing voltage ranges from 12V to 1000V, which is suitable for household appliances. 4. Made of high quality engineering plastic, pen body is hard, wear-resistance and insulated. 5. Built-in intelligent chips achieves sound light alarm, auto sensitivity, auto shutdown, NCV null and live line test and other functions. Specification: Brand: PEAKMETER Model: PM8908C Auto Power Off: Yes Low battery indication: Yes Live/Null Wire Identification: Yes NCV Sensitivity: Automatically selecting 3 kinds of sensitivity (High, Medium, Low) Voltage Sensitivity: AC 12V-1000V Frequency: 50-60Hz Alarm Mode: Sound light Flash Light Color: White Operating Temperature: 0-50 ℃ (2-122℉) Storage Temperature: -10-50℃ (14-122℉) Humidity: < 85% RH Battery: 2pcs 1.5V AA Batteries ( NOT included ) Size: 16*2*2cm/6.30*0.79*0.79in Weight: Approx. 64g Package Includes: 1 x Voltage Tester ( Battery is NOT included ) 1 x User Manual .