How long does it take for the property smoke alarm to arrive at the scene?

Hello, smoke alarms are divided into independent and non-independent types (which need alarm host control, also called linkage type).

Independent smoke sensation

Full name: independent photoelectric smoke detector, referred to as independent smoke detector or independent smoke detector, also referred to as independent smoke detector. Working principle: Independent photoelectric smoke detector adopts photoelectric sensor with special structure design and SMT chip processing technology, which has the characteristics of high sensitivity, stability and reliability, low power consumption, beautiful and durable, and convenient use. Circuit and power supply can be self-checked, and analog alarm test can be carried out.

Built-in light-emitting tube, that is, a light-emitting element and a photosensitive element, usually the light emitted by the light source hits the photosensitive element through the lens, and the circuit remains normal. If there is smoke blocking, the light reaching the photosensitive element is obviously weakened, so the photosensitive element changes the light intensity into an electrical change and gives an alarm to people through the amplifier circuit.

Dependent smoke alarm

Commonly known as smoke detector, intelligent photoelectric detector, smoke detector and so on. The non-polar signal two-bus technology is adopted, which can be used with various fire alarm controllers.

Hope to adopt!