The smoke alarm has a red dot flashing. Is it a hidden camera?

It is not a hidden camera that the smoke detector flashes with a red dot, but it does not rule out that some lawless elements will bind the smoke detector and the camera together and do illegal things.

In general, when the smoke sensor is working, the red light flashes back and forth, indicating that it has been triggered and needs to be turned off. If you want to know if there is a camera in the room, you can turn off the windows and lights in the room and turn on the camera of your mobile phone. Don't press the shutter or turn on the flash. Check the room. If there is a red dot, it may be a camera.

On the one hand, the flashing red smoke alarm is a sensor, on the other hand, it proves that it is working. Smoke alarm, also known as fire smoke alarm, smoke sensor, smoke sensor, etc. There is no sound at the scene when the alarm is given, and the host has an audible and visual prompt. This kind of smoke alarm is generally called smoke detection equipment.

Functional characteristics of photoelectric smoke alarm

1. When a substance burns, it often produces smoke first, then visible light and invisible light. The smoke alarm can detect 360 degrees in all directions. Once the "signal" of the burning object is "captured", it will be converted into an output signal and uploaded to the fire control system.

2. When the smoke reaches the predetermined threshold, the equipment sends alarm data to the gateway, and the alarm in the equipment will simultaneously give out a clear and loud alarm sound until the danger is relieved or the air is cleared again. In order to avoid false alarm, the alarm time can be adjusted appropriately.

3. Smoke alarm is a standard ModBus-RTU signal output, which is convenient for users to develop again. It can be uploaded to the environmental monitoring platform provided by Jianda PeopleSoft for free through network signals to realize 24-hour uninterrupted monitoring.