First, you need to turn on the camera of your mobile phone, turn off all the lights and power equipment in the room, and then check whether there is infrared lamp in the room. The specific steps are as follows:

1, the camera of the mobile phone is sensitive to infrared rays, so you can turn off all the lights and power equipment in the room first.

2. Form a strict darkroom environment. Now turn on the camera of the mobile phone.

3. Then aim the camera at the part that needs attention, and keep your eyes on the mobile phone screen at all times.

4. Look around the room. If there is infrared light, there will be bright spots on the phone screen. After the bright spot is found, the position of pinhole camera is basically determined.

Precautions:

When staying outside, check the pinhole camera to prevent your privacy from being used by criminals. Call the police in time when problems are found.