August 13, 2022

Do you know how a smoke optical alarm works?

smoke optical alarm realize fire prevention by monitoring the concentration of smoke. Our smoke detectors use photoelectric (optical)smoke sensors. Photoelectric smoke sensors are advanced technology, stable and reliable sensors and are widely used in various Fire alarm system The smoke moved up and reached the ceiling. Smoke optical alarm detect fires through smoke. When you don’t see the flame […]

March 30, 2022

what is the working principle of the fire smoke detector?

General term for smoke alarmWith the increase of people’s awareness of security, more and more attention has been paid to security products, especially the application of smoke alarms is more extensive, almost every home must be installed. Smoke alarms are also called “smoke detectors”, or fire smoke detectors, fire alarms, and fire detectors, which are all […]

March 12, 2022

How to check if a smoke detector is good or bad?

There are many kinds of smoke detectors in the market, such as standalone smoke detector, wired smoke detector, smart wireless smoke detectors, and so on. Among of these detectors are good or bad, but how do we distinguish between good and bad? So, let’s compare our SR-820DHS home smoke alarms (be short for A )with other cheap […]