DG802 independent type smoke detector is introduced

Independent smoke alarm summary

JTY-GD-802 independent type smoke fire detection alarm (hereinafter referred to as the detector) a lot of smoke produced can detect fire, timely warning signal. The detector adopts MCU control, can produce the intelligent judgment of fire smoke and alarm. The alarm adopts photoelectric smoke sensing device and its production technology, excellent working stability, beautiful appearance, simple installation, no need for debugging, and can be widely used in hotels, shops, bars, dance halls, Coffee hall, lounge, residential and other places fire safety monitoring. Alarm internal buzzer, alarm issued a strong voice. Alarm using 9V laminated battery powered, little power consumption, continuous working time can be up to more than one year.

Independent smoke alarm performance characteristics

* new high performance sensor can effectively detect smoldering fires * alarm using professional chip design, reliable performance

* the insect proof net design smoke chamber, avoid insects into alarm * LED lamp - display alarm normal work and alarm status

* the shell is made of fire ABS engineering plastic, beautiful generous

* independent smoke detector

Independent smoke alarm principle

Detector for smoke induced mainly by optical maze, maze with a group of infrared emission, receiving phototube, shooting angle of 135 degrees. When no smoke in the environment, receiving tube receiving less than the infrared emission tube emits infrared light, subsequent sampling circuit without electric signal change; when there is smoke environment, smoke particles enter the maze in the launch tube emitted infrared light scattering, a linear relationship between the strength and the smoke density of scattering light, subsequent sampling the circuit changes, through the detector with built-in MCU determine these variations to confirm whether the fire, once confirmed fire detectors, fire alarm signal is sent out, fire indicator light (red) light, and starts the buzzer alarm.