How to choose the smoke detector for residential school retirement homes is the key

Smoke detectors, also known as standalone smoke detectors, smoke alarms, are typical devices that are transformed from civilian space fire protection measures. Smoke detector features: 1. Compact...

Photoelectric smoke detectors are suitable for places where there is a lot of smoke during fires and smoke-free under normal circumstances, such as: restaurants, hotels, teaching buildings, office...

(1) How does a smoke alarm work? The smoke is moving upward and reaches the bottom of the sky. Smoke alarm found fire through the smoke. When you don't see the flame or smell the smoke, the smoke...