1. Power supply: 9V alkaline battery 6LR61 2. Standby current: 35A 3. Alarm current: 20mA 4. Working temperature: 4-38 5. Working humidity: 25-85RH 6. Alarm sonority: 85db 7. Static indication:the red LED light flash one time per second 8. Low voltage alarm: a sharp sound per 30 second 9. Product size:10.2 10.2 3.6cm
