Features:
Independent installation on ceilings & walls, with mounting bracket, which is easy to install & do not need to debug.
With specially designed cover, can protect it from dust.
Built-in dedicated IC: with stable performance & high sensitivity.
Can monitor air & detect smoke with optical principles. When it reaches the maximum amount that the chamber can bear, it will alert.
LED light flash indicator.
Low battery indication.
With a test button: can take analog alarm tests of the smoke alarm.
Can warn & alert people to stay far away from dangerous field when it detects smoke.
Suitable for use in house, shop, school, office building, storage areas, etc.