Function:
1) Stand-alone: Independently alarm when it detects the smoke;
2) Wireless join-net: It adopts wireless join-net technology, when one unit detects smoke and alarm, it will emit signal to other with same coding and start it to alarm;
3) In alarm system: Study into wireless zone in your home security system, it could also alarm through the siren of the system

Technical Data:

Smoke alarm:
1)Power source: DC9V
2)Static current: <10uA
3)Low voltage alarm: 7V+0.5V
4)Alarm sonority: >85 dB (3m)
5)Operation temperature: -10º C~40º C
6)Relative humidity: 93%RH

Wireless join-net:
1)Power source: DC6V (4xAA battery)
2)Average static current: 0.11mA
3)Emission current: 20mA
4)Emission time: Emit for 14S every 5 Min
5)Emission distance: >50m (wide place)