Wireless Smoke sensor with CE
smoke detector, fire detector, fire alarm, 9V spare replaceable battery,High Density SMT Design

Wireless Smoke sensor with CE certification ,Test function & Low voltage alarm function

Features:
1) Power source: DC 9V, AC 220V, DC 9V and AC 220V
2) Working current: : Surveillant current<15?, alarm current: <30mA
3) Alarm sound: >85dB
4) Ambient temperature: -10 ~ 50 centigrade
5) Low battery alert: 7 days
6) Can be used separately as well as in combination of up to 40 items