Photoelectric Smoke detector

DC Operated Wireless Photoelectric Smoke detector with EN14604 (smoke alarm,fire fighting) 1. DC Operated Wireless Network Photoelectric Smoke Alarm 2. Insects Proof 3. Test button 4. Non-radioactive technology for environmental friendly 5. High and stable sensitivity 6. With quick fix mounting bracket for easy installation 7. Fitting and battery tamper-resist feature 8. Wireless Inter-connectable 9. LED operation indicator 10. Low-battery and battery missing warning indicator 11. Auto-reset when smoke clears 12. CE, BSI, SAI Global approved, comply with EN14604, AS3786 and UL217 standard Operation Temperature 5°C -45°CPower Source9 volt BatteryStandby Current25uA maxAlarm Current40mA maxAlarm Sound Level85 decibels at 3 mWorking Frequency433/868MHz transmitting and receiving Ambient Humidity10%-90%Sensitivity to Smoke3.0-6.0 %Obs /mEmission distance>60m