Main features:

Operating voltage :3v lithium battery

Bettery life:10years

Infrared photoelectric sensor

MCU processing,eliminate false alarm,low batter warning

Low power consumption,test and hush button

Shockproof design ,

Dustproof,mothproof,anti-light interference design

Sound & flash alarm,Sound level 85db/3m

Low battery warning ,Test/hush function Tool-Free intallation design

Technical Parameter: