Traditional Culture Encyclopedia - Hotel franchise - There is a red dot on the top of the room. What is this for? Could it be a monitor?
There is a red dot on the top of the room. What is this for? Could it be a monitor?
It's surveillance, but not video surveillance. Generally, it is a fire sensor, a smoke fire alarm and a temperature fire alarm. When you see a red dot flashing, it is a smoke fire alarm, that is, once there is a fire in the room, it will call the police. The system has been linked and will be linked to the monitoring room of residential property. In case of fire, call the police in time.
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