How to check the camera with your mobile phone when staying in a hotel?

Keep the room in a dark environment, turn on the video recording function of the mobile phone, and walk around the room with the mobile phone. If a red line can be displayed on the mobile phone, the infrared camera can be detected.

1. After entering the room, turn off the lights in the room and close the curtains to keep the whole room in a dark state.

2. Turn on the camera function of our mobile phone, carefully scan the place where the camera may be installed in the room, and don't miss any place where the camera may be installed.

3. In the process of scanning, if a red light spot appears on the screen of the mobile phone, it is likely that a camera is installed.

This method can only be used to detect cameras with infrared fill light. For those ordinary cameras that are not infrared, you can check them with a flashlight.