What is the reason for the flashing red dot on the top of the hotel room?

The flashing red dot on the top of the hotel room is a fire sprinkler, and there will be a flashing red light to indicate normal work. Most hotels have this kind of equipment. At the end of each year, the building management will check it, pump it with pipes, the sprinkler will call the police, and then spray water or foam to put out the fire.

How to check whether there is a camera in the room?

1. Turn off the light in the room, turn on the camera function of the mobile phone (don't turn on the flash), and use the mobile phone to circle the room. There is no red dot on the screen, which means the room is safe and there is no pinhole camera. Pay attention to the extremely hidden dead angle.

2, the use of professional dog detection tools, can use the principle of electromagnetic induction, at any time to detect the presence of pinhole or eavesdropping equipment, to prevent, focusing on the inspection of objects facing the bed and some flowers and plants.

3. Avoid the entry and exit of unidentified people. Pay attention to whether the doors and windows are closed when taking a bath, and go in and out of public places. Pay attention to check whether there are suspicious people or inappropriate items around.