How to spot a hidden camera without special equipment
A hidden camera is usually small enough to fit inside everyday objects — a smoke detector, a charging brick, a picture frame, a clock radio, or a pen. You do not need expensive detection gear to find one. Start by looking for the lens itself, which appears as a small dark dot or pinhole, often surrounded by a slightly raised plastic ring. The lens catches light differently than the surface around it.
Scan the room slowly from different angles. Hidden cameras are almost always pointed at a bed, bathroom, or changing area. Check objects at eye level or slightly higher, since most people position them to capture faces and bodies. Look inside air vents, on shelves behind other items, in corners where walls meet the ceiling, and in any object that faces into the room rather than against a wall.
Pay attention to objects that seem out of place or newer than everything else in the room. A high-end camera hidden in a cheap plastic clock is a mismatch worth investigating. If something feels wrong — a device that is heavier than it should be, or warm when it should not be — pick it up and examine it closely.
Key Takeaways
- Hidden camera lenses appear as small dark dots or pinholes and catch light differently than the surrounding surface.
- Check objects at eye level or higher, especially those pointed at beds, bathrooms, or changing areas.
- Common hiding spots include smoke detectors, charging bricks, clocks, picture frames, air vents, and shelves.
- If you find a camera in a rental, photograph it in place and contact your landlord and local police before touching it.
- Your phone's camera can sometimes reveal infrared lights that human eyes cannot see, which many hidden cameras use at night.
Using your phone camera to detect infrared lights
Many hidden cameras use infrared LEDs to record in darkness. Your phone's camera sensor is sensitive to infrared light in a way your eyes are not. Open your phone's camera app and point it around the room in low light or darkness. Infrared lights will appear as bright white or purple dots on your screen, even though you cannot see them with your eyes.
This method works best in a dark room. Close the curtains, turn off the lights, and slowly sweep your phone camera across the space. Pay special attention to objects you already suspect — if an infrared light appears on your phone screen coming from a smoke detector or a picture frame, that is a strong sign of a hidden camera. Not all cameras use infrared, so the absence of infrared light does not mean the room is safe, but finding one is a clear indicator.
Where hidden cameras are most commonly placed
In rental properties, hidden cameras are most often found in bedrooms and bathrooms because those are the spaces where people undress or are vulnerable. Check the bathroom first: look inside the exhaust fan, behind the mirror if it is removable, inside soap dispensers, and on shelves. In the bedroom, examine the nightstand, the area above the bed, inside alarm clocks, and any decorative objects on walls or shelves.
Living areas and entryways are less common but still possible. If the rental has a shared space or if you are staying somewhere temporary, check the corners of the room where a camera could see the entire space. Look at any object that was already in the room when you arrived — landlords sometimes leave devices behind intentionally or by accident.
In your own home, the risk is lower but still real. Check guest rooms, bathrooms, and any space where you have had contractors or service workers. A camera hidden by a previous tenant or left behind by a repair person is rare but has happened. If you are concerned about a specific area, start there.
What to do if you find a hidden camera
Do not remove or destroy the device. If you are in a rental property, photograph the camera in its exact location and take a photo of the serial number or any identifying marks. Write down the date and time you found it. Contact your landlord when ready and describe what you found and where. If your landlord denies knowledge or becomes defensive, do not pursue the conversation further.
Call your local police non-emergency line and report what you found. Explain that you discovered a hidden camera in a rental property and provide the photos and the date. Police will advise you on next steps, which may include filing a report or allowing them to collect the device. In some places, hidden cameras in bathrooms or bedrooms are a felony; in others, the law depends on whether there was an expectation of privacy.
If you are in a hotel or Airbnb, contact the front desk or the property owner when ready. Do not confront them in person if you feel unsafe. Report the finding to the platform (Airbnb, Booking.com, or the hotel chain) and to local police. These platforms have policies against hidden cameras and will investigate.
Limitations of visual inspection and when to call a professional
Visual inspection catches most hidden cameras, but not all. Very small cameras or those disguised as legitimate objects can be difficult to spot. If you have a strong reason to believe you are being recorded but cannot find anything, you have a few options.
Professional bug sweeps exist, but they are expensive — usually $300 to $1,000 or more — and are not regulated in most places. Anyone can call themselves a "security informed" and perform a sweep. If you decide to hire someone, ask for references and verify they have experience with hidden cameras specifically, not just general security work.
A more practical middle ground is to ask a trusted friend to help you search. A second set of eyes often catches things you miss. If you are in a rental and genuinely concerned, you can also ask your landlord's permission to have a professional inspect the space — this puts them on notice that you are taking the matter seriously.
Preventing hidden cameras in rentals you use regularly
If you travel frequently or stay in short-term rentals, do a quick visual scan every time you arrive. Spend five minutes looking at the bedroom and bathroom. This becomes routine and takes almost no time. Look for the same things every time: small dark dots, objects that seem out of place, and anything pointed at the bed or bathroom.
In Airbnbs and hotels, ask the front desk or host if there are any cameras in the unit. Most legitimate properties will tell you upfront if there is a security camera in a common area, and they will tell you it is there. If someone is evasive or says "maybe" or "I do not remember," that is a warning sign.
For rentals you use regularly — a vacation home you return to, a corporate housing unit — ask the landlord directly in writing whether any cameras are installed. Keep the response. If you later find a camera that was not disclosed, you have documentation that it was hidden intentionally.
Frequently Asked Questions
Can a hidden camera work through walls or closed doors?
No. A camera needs a clear line of sight to the area it is recording. It cannot see through walls, doors, or opaque objects. If a camera is hidden, it is hidden in the room itself or positioned to see through a gap, a vent, or a hole. This is why checking the room you are in is effective — the camera has to be there.
Will a hidden camera show up on my WiFi network?
Many hidden cameras connect to WiFi, but not all. Some record to a local memory card or transmit over cellular. Even WiFi cameras may not show up with a recognizable name — they might appear as "Device_12345" or a manufacturer code. Checking your WiFi network is worth doing, but it is not a reliable way to find all cameras.
Is it legal to search for hidden cameras in a rental?
Yes. You have the right to search for hidden cameras in a space you are renting. You do not need permission from the landlord to look around the room you are paying to use. If you find one, the legality of the camera itself depends on where it is pointed and what it records — a camera in a bedroom or bathroom is illegal in most places.
What if I find a hidden camera in a hotel and the staff denies it?
Take a photo of the device and its location. Leave the room and contact the hotel manager in writing (email is best) describing what you found and where. If the manager is unhelpful, contact the hotel chain's corporate office and file a report with local police. Document everything in writing so you have a record.
Do I need to tell other guests if I find a hidden camera?
If you find a camera in a shared rental property or hotel, report it to the property owner or manager when ready. They are responsible for notifying other guests and taking action. You are not obligated to contact other guests yourself, but you can if you have their contact information and feel it is necessary.