1. Working voltage: 912VDC or 24VDC 2. Current: 300mA 3. Anti-jamming intensity: 1V/m (frequency 20-1000 MHZ) 4. Alarm sonority: 110db 5. Working temperature: -1055 6. Working humidity: 10-90RH 7. Place of installation: clean, dry and non-vibration wall 8. Product size:31.3 19.7 7.5cm
