How do you know if there is a monitor or monitor in the room?

The following methods can be used to detect whether a monitor is installed in the home:

1, infrared scanning method: Turn off the lights in the room and leave the room in a dark state. Then turn on the camera function of the mobile phone, walk around the room, and check the dead angle, ceiling, TV, air conditioner and other places where pinhole cameras may be installed. If you see a red dot on your mobile phone, you have a pinhole camera. But some mobile phones that filter infrared rays can't be detected.

2. Reflection detection method: If the mobile phone can't be scanned and you don't want to cut off the power supply, you have to manually eliminate it by reflection detection method. Ordinary pinhole cameras use flashlights or flashlights that come with mobile phones to find color reflectors. If there is reflection when illuminating a suspicious place, there may be a hidden camera.

3. Testing of professional equipment: If you are worried about missing or frequently traveling to hotels, the most direct and effective way is to buy a wireless signal detector ZXTY-CD 10.