9V Battery Cheap and Stable Smoke alarm -------Super HoT!
1.Cheap and Stable
2.Thin Design
3.Easy to install, DIY

9V Battery Cheap and Stable Smoke alarm

Features:
ASIC control
Manual test, auto-reset
Low power indication
Infrared photoelectric sensor
Sound & flash alarm
Thin structure design
Strong adaptability to circumstance
SMT adopted
Dustproof, mothproof and anti-white light

Tenical Parameter:
Operating voltage: DC9V (power by battery)/DC9-16V
Standby current: less than10uA
Alarm current: less than 20mA
Operating temp.: -10 to +50 degrees
Working humidity: less than 95%RH
Alarm mode: sound & flash alarm/relay output
Alarm volume: more than 85dB within 3meters
Detecting area: 20 square meter
Sensitivity: class I
Dimension: 107mm dia.*35mm deep
Box size :34cmX57cmX42cm;
q'ty/box:115pcs,
weight:17.3kg/box