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Quick smart The smoke by the change in the intensity of the infrared light scattered in the smoke. When the light intensity received by the photosensitive receiver exceeds the set value, the piezoelectric horn will be driven to sound an alarm.
Easy Installation No need to connect wires, just use the attached screws to fix the anchor plug on the mounting bracket, and rotate the smoke sensor to the right to the gap to complete the installation on the wall or ceiling.
Reliable
