Product Information 1. Measuring Range:12~1000V 2.Non-contact AC Voltage Tester 3. NCV Sensitivity:High,Medium,Low 4. Alarm mode: Sound and Light 5. Accuracy Cla: Cla III 6. Flash light: Yes 7. Operating Temperature:0~40 8. Display Type: Digital Only 9. Probe Shape: Prolate 10. Dimensions: 156 x 20 x 20mm 11. Power Supply: 2 x 1.5V AAA Batteries(Not Included) Notice The starting default AC voltage detection range of the tester: About 48lOOOV. Pre the AC voltage detection range switching button (S), the detection range indicator lights up, and the detectable voltage range of the tester is about 121000V. Pre the AC voltage detection range switching button (S) again, the detection range indicator lights off, and the detectable voltage range of the tester is about 48lOOOv. Automatic shutdown function When there\'s no operation of the tester and there's no voltage signal detected by the tester within 5 minutes, the tester will power off automatically. Battery undervoltage indication When the battery voltage is lower than about 2.6V, the power indi cator flashes for 3 times,while the buzzer makes a sound and then turns off. Please replace the battery timely. Package includes 1 x AC Voltage Tester