Detailed Product Description
Product description: 
A smoke alarm detector that is ideal for home safety system. The smoke alarm will give out sound and light warning when there is smoke. A smoke alarm is a safety product that warns you a potential fire maight happen. This smoke detector has the characters of high sentivity, fairly good stability and low power comsuption. We will offer you the smoke alarm with the best quality and the most competive price.
1,Power Source : 9V battery
2,Operating Current : 10 uA (normal) and 20-50 mA(alarm working)
3,Sensitivity to smoke : In comply with CE standard
Ambient Humidity : 10% - 90%.
Horn Level: 85 Decibels at 10 feet.
4, Battery life:1 year
5, Interconnecting Gas detector
(1)Circuit for normally closed relay contacts
(2)Circuit for normally opened relay contacts
(3)Operating Frequency: 433 MHZ/315MHZ (optional)
6,Size:105mm*25mm
7,Weight:150g/pc
8,Package size:58.5cm*42.5cm*30.6cm
9,Quantity/Box:80pcs
10,CtnWei(kg):15.5kg
11,Q`CTY/20`FT:33920pcs