smoke alarm with CE,RoHs

Photoelectric Smoke Alarm                                        
1) Material: ABS plastic
2) Assembly no wiring, size: Dia.107xH37mm
3) Power supply:9V battery( not included)
4) Standby current: 8μA, Working current: 10mA
5) Environment temperature: -10°C ~ +50°C
6) Environment humidity: 0 to 95%(40±2°C)
7) Alarm decibel: 85dB/3m 

8) Test function & Low voltage alarm function                                                                                          
9)Smoke sensitivity:2.26±1.21%FT Obscuration
10)5 years limited guarantee