Smoke Alarm Photoelectric ( 3 for the price of 1)

3 for the price of 1

Garvan Photoelectric 9 Volt smoke alarm

Main Features:

Certified to EN14604 Approval

85 dB loud Alarm signal at 3 metres

High performance Photoelectric smoke chamber with insect screen

Fast response Alarm /Power indicator

Test button & Low battery warning reminder

Cannot be installed with Battery missing (as a safety feature)

Supplied with fixing kit.

Technology:

The Photoelectric sensor uses a light source and a light sensor to measure smoke density. The light source is constantly on but the light beam is angled away from the light sensor. When the smoke enters the chamber the smoke particles Scatter some of the light toward the sensor. As the smoke density increases . more light is scattered forward to the sensor. When the amount of light scattered into the chamber reaches a predetermined threshold the unit goes into alarm mode and the siren sound and alert occupants. 

Operation:

Once the smoke alarm has been installed a small indicator Light LED positioned under the test button should flash approximately once a minute in normal operation.