1. Size: 157.6X26mm 2. AC voltage: 12V-1000VAC 3. Frequency: 50HZ / 60HZ 4. Alarm mode: sound / light LED index display 5. Probe shape: flat 6. Fire line and zero line: sound / light / LED index display 7. Non-contact sensitivity: yes (adjustable) 8. Automatic shutdown: about 3 minutes without any induction signal or without any operation 9. Power supply: two AA batteries (not included)