wireless smoke detector powered by battery in photo-sonic alarm

Model:JS-83W wireless smoke detector

Features:
1. Smart design, beautiful artistand easy installing.
2. Intellectual single chip processand steady and credible self-testing.
3. photo-sonic alarming and restoreautomatically 
4. Connection pole design, convenience,fastness and shortcut
5. suited to use it solely or fit onthe wireless electropult module to use with the wireless control system

Specification:
Power:9V battery
Static Current: <20 uA 
Alarm Current: < 25mA
Alarm output: photo-sonic alarm 
Alarm volume: greater than or equal to 95db
Operatedtemperature: -10celcius to 45celcius 
Operated humidity: less-than 97% 
Size: R:5.25(cm) 
H:3.2(cm)

LED indicator: 
Self-testing condition: lighting one time every 1.67s
Monitoring condition: light onetime every 40s
Alarming condition: lighting onetime every second