Main Features: 
1.stand alone style
2.Infrared photoelectronic sensor;
3.buzzer alarm/LED indicating alarm;
4.Latest design
5.with hush button
6.Low voltage threshold
7.Execute Criterion:EN14604:2005/AC:2008
8.Suitable for family homes, commercial shops, restaurants, factories, office buildings

Technical specification
Power supply:    DC3V built-in lithium battery 
Standby current:    ＜12uA
Alarm current:    ＜35mA
Low voltage threshold:    2.7V
Product lifespan:    10 years 
Alarm mode:    LED &buzzer
Alarm sound:    >85dB/3M
Fire protection grade:    V-0
Material:    ABS fireproof material
Installation method:    ceiling mounted
Product size:       Φ110mm×H42mm
single packing size:    132mm*123mm*50mm
Detector Net weight:    140g
Execute Criterion:    EN14604:2005/AC:2008