Top 5 Tips How to Detect Hidden Cameras


Have you stayed in a hotel and wondered whether there are hidden cameras inside your room? If you have that fear, you are not alone. There have been many cases where a hotel room have been secretly installed with a hidden camera. This may be done due to sinister motive such as blackmailing and sometimes just simply a pervert action by troubled mental people.

So, to keep yourself safe and secure, these are some tips on how you can actually detect any hidden cameras in a room where you are staying. Better be safe than sorry. Here are the top 5 tips you can detect hidden cameras.


The first step that you can make after entering a room is to switch off the light and pull down all the curtains. This to make sure your room is pitch black. Wait for a few minutes as your eye adjust to the dark environment. Once your eye have adjusted, try to use your eye to scan around the area of your room. Try to look for any blinking LED or blinking red lights.

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Or you can also pinpoint a place or area that you want to scan before you switch off the light. Try to think if “I want to hide a hidden camera, where would I put it”. After that, switch off the light and scan the area that you have targeted.


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If you could not find any red lights physically using your eye, you can then open your phone’s camera and scan around the room. As your camera has the adjustment ability for light, the camera in your phone will quickly pick-up any small lights emitting from any devices. Make sure the room is pitch black in order to do this scanning.


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Most of your smartphones have the flashlight function. You can use the flashlight to scan your dark room for any reflective lights from the lens of the hidden cameras. Try to flash the flashlights to any tiny holes in the wall as well as hidden places.


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One of the favourite location for a hidden cameras is behind mirrors. Look for any mirrors in the room. For the hidden camera to be able to see from a mirror, the mirror either must have a pinhole on it or it is a two way mirror. You can just check physically for any pinhole in the mirror.

However, to check if it is a two way mirror, you can put your finger to the mirror and see whether it touch your finger reflection or not. If it touch, it is a two way mirror.

Another way is to dim all the lights as a two way mirror can only work if the lights on the other side is brighter. You would be able to see the other side if the lights in your room is dim enough.


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Hidden cameras need to be activated 24 hours and they also must rely on a power source, either from a battery or a power outlet. The hidden cameras also emits electromagnetic as it is an electrical device.

Remember when you are calling your friends on your phone and you got that static or clicking noise when you are very near to your TV or microwaves? The same principle can be applied here. Try placing a call to your friend and scan around the room to pick up any static noise.

The static noise may either comes from an electrical device that is visible in your room as well as the hidden one.

So, there you have it 5 awesome tips on how you can find a hidden camera using free methods.

However, if you want to use a proper tool to scan your room for any hidden cameras, you can always get a cheap scanning device at Amazon. One effective and not expensive tool is the Anti-spy Camera Bug RF Detector (Affiliate link) or you can get the more high grade equipment such as the Sleauthgear Law-Grade Counter Surveillance PRO (Affiliate Link)

What do you do if you actually find a hidden camera?

What do you do next? Take a picture of the hidden camera and its location, and immediately report this to the security officers where you are staying. However, if you are staying in a place where there are no security officers, the best place to report is to the local police or authority. Remember, to document this properly so that no one can accuse you as the one who puts the hidden camera in that room in the first place.

Please leave us a comment below if you find these tips helpful.

Read also our previous post on how to keep your gadgets safe and secured.