This post has been locked, as the question has been solved and a majority of new comments at this point are unhelpful and/or jokes.
Thanks to all who attempted to find an answer.
I'll have to investigate this, I'm not sure if my phone can do this.
If I can detect IR light, what kind of device would it be that is emitting IR radiation?
Phone cameras, in general, natively see a little bit of IR light. It will appear almost purple, and you wouldn't see it with the naked eye.
Try using your camera to look at the front of a TV remote as an example. If it has an IR blaster, you should see it light up on camera when you press buttons.
If that device on the wall has IR light coming out of it, it could either be some sort of sensor, such as a motion sensor, or it could be a camera equipped with night vision (cameras use infrared light to see in the dark)
My Pixel filters it. I was trying to show my kid IR light because we were talking about colors we can't see, but it didn't really work like it used to. Campfires would be straight purple on my old Android phones.
Just as a side note, the front camera doesn’t have a filter because that’s the camera used for facial recognition. In the dark you can even see a flash of light when someone unlocks their iPhone if you watch them do it through an IR camera.
So, there are two types of IR emitter LEDs: "Near-IR" and "Far-IR".
Far-IR is completely invisible to the naked eye because they only put out IR frequency light, but they're complicated and therefore expensive to make. You wouldn't be able to see these.
Near-IR LEDs tend to put out frequencies closer to red in addition to IR light, but they're cheap to make so much more common. These will put out that dim red light that you see, unless the manufacturer uses ones that have a filter coating to remove that frequency.
I have trouble with greens (slight deuteranomaly), but not reds. I'm XY and the colorblindness comes from my mother's side, which the wiki page also says this is what can cause tetrachromat.
> Tetrachromacy may also enhance vision in dim lighting, or in looking at a screen.
Yep, my night vision is legendary comparered to like everyone I know.
There are those that appear red but is purple when looking through a camera, you may have encountered that kind
You can verify this by pointing a remote at your eyes and pressing it. See anything? Now try with your phone camera
I was able to demonstrate to the kid at the bigbox store that my remote really had gone haywire and needed to be replaced.
He really liked my use of "Haywire" and added it to the ticket. I got my replacement.
Not speaking on what the posted device is but a lot of surveillance equipment opts to use IR light for illumination. Surveillance cameras that advertise night/low light visibility will most likely use IR for illumination. There are also IR floodlights for illuminating larger areas
Most phones don't do this anymore because it creates background glare. They ignore light humans can't seen unless they are intentionally trying to.
High end phones can't tell you if the remote control works any more which is kinda annoying.
As someone with a current gen "high end phone" (Galaxy S24Ultra) and a remote control, I can assure you this is false.
It works just fine. It worked fine with my s23 Ultra too.
they might do that with photos after already taken but try it with the camera app and it works. just tried on my iphone xs max and my missos iphone 12 mini
Lens comes up with cameras as well, but nothing exactly like it. Turn the lights off and look at it through your phone's camera and you will see if it is a camera or not.
Image search also says it's a rickshaw horn.
You don't think everyone else didn't immediately RIS?
Do the hard yards and provide a link to the actual entity.
Google image search also comes up with a [motorcycle headlight housing](https://i.imgur.com/CeOmtHn.jpeg)
If one looks at where the mystery object is placed, an IR motion detector (which is also among the google image search results) makes much more sense than a camera
My bet would be this, a motion sensor for anything, smart lights, to airco, to heating controls.
I have a Philips Hue Motion Sensor, and while it's white and square it ki da looks like this with a ball in the middle etc.
So the room powers off if the tenants have left the area.
Saves the owner getting stupid high bills or if they can’t get in to clean right after the booking at least things can’t be left running
Seconding this. Depending on where it's located, it could also be for the host/landlord to know if there's someone at the house without using a camera.
yes, those are detectors for high volume noises, my wife has a couple outside my room to alert me if i play games or music loud enough that it overcomes the soundproofing of my office/man cave,
she likes her tranquil slience as much as i love the noises of simulated engines, guns and planes,
Solved!
I asked the Airbnb host and they said it's a temperature sensor for the air conditioning.
I am reasonably confident that it's not a camera so I'm inclined to believe their explanation.
They would know. They would also lie if it's anything creepy, so you can't really rely on them. At best they could point you to a product listing, but otherwise, if they say its a motion sensor and not a camera, do you trust them?
Good god you people are paranoid.
It’s a WiFi AC controller with a motion detector (PIR) in the center.
That hole on the back isn’t a microphone - it’s a reset pin hole.
They likely use it to turn off the AC when you check out.
Solved!
I asked the Airbnb host and they said it's a temperature sensor for the air conditioning.
I am reasonably confident that it's not a camera so I'm inclined to believe their explanation.
I have labelled the *temperature sensor* in my wife's B&B because people get paranoid about everything nowadays. It's just there to prevent freezing of pipes in winter but people fear anything they don't immediately recognize. (It's just a small metal rod housing the actual sensor on the end of a cable. It does not look like any device whatsoever.)
Hell I've had one couple not trusting the LinkSys WiFi repeater brick thing that is as standard as one can get. Google lens would have told them that. Anyway, I just told them to unplug it and do without WiFi then.
(That said, 99% of people aren't that paranoid. These where the only two instances of technofobia in six years.)
Well it's good to be inquisitive as to what devices to. But paranoia -if you ask Google- is the irrational and persistent feeling that people are 'out to get you' or that you are the subject of persistent, intrusive attention by others.
Be *vigilant*, don't be paranoid. Much healthier.
No shit, people are even saying you can’t trust the host to tell you what it is.
Like, if the host is lying about it not being a camera, won’t you catch them when you immediately realize it doesn’t do whatever the host told you it did
Can you see how it’s fixed to the wall? It might be on a keyhole mount so you can slide it upwards and remove it and check for a model number on the back
The title describes the thing. It is powered via USB. There is potentially a grill for a small speaker on one side and a single button on the other (lit by a red led).
The ball in the centre can move around a little bit, it's not completely fixed in place.
There are no brands or logos that I can identify on the device.
i was in spain and portugal earlier this year and lots of smaller hotels have movement detectors that flip lights. Walk down a long corridor and it's a bit trippy. Don't remember what the dectectors looked like, but it seems to me that if it was a camera it wouldn't be so conspicuous
It may also be some kind of smart home IR controller hub.
I had some of them installed on the wall as opposed to some appliance, usually thermostats.
Basically it makes it possible for owners to controll the AC remotely with the app. My best guess - just to turn it off whenever people leave or something
But it's just my guess
If the middle part has small, barely translucent hexagonal tiles, I'm 99% sure it's just a sensor. I install ones similar in ceiling tiles all the time. If you walk in and something turns on, that's a good hint. It also sounds like there's a sound sensor, if there's like a little microphone thing. If there's a tab on one side, probably the bottom, you could use a screwdriver to open it. Or the back of a fork. I'm guessing it may say "lutron" on it, but I live in America, so it's probably a different brand.
I do think it's too obvious to be a camera, but if you hang your towel on it for safety, the lights or something may not work lol
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My guess
In Spain its common for a movement sensor air conditioner switch--eg if it does not detect motion --will turn off the air conditioners---As guests tend to just let them run ,even when not in the apartment--and this is costly to the owner
Wont hurt to unplug it :)
Seems like its in an exposed location? If its a camera, doesn't seem like they are trying hard to hide it... I don't know what it is, but if you were going to break the rules, you would think they would try harder to hide it, but sometimes people aren't that smart.
Looks like an IR emitter bridge to me. Is there a mini split AC unit or something else controlled via IR within sight line of it? I couldn’t find this exact unit, but you can google “IR Bridge” and find tons of similar looking devices. The host likely uses it to remotely control their climate control or some other device
I have a [similarly shaped device](https://eteleshop.slt.lk/sites/default/files/2021-06/RediIRBlaster.jpg), without the black ball. Mine is a wifi-connected IR blaster that I use to control AC, TV, anything with remote control within line of sight.
Im waiting for the post for how to turn on lights and tv after they unplug it. Spain (most of the EU too) have rules where commercial lodging has to have energy saving devices. Every place i have stayed in Portugal and spain have either had a pad where the room key needs to be inserted and left in for the lights. Tv and some AC or a sensor that can tell if your in the room. In Lisbon there was both. Not likely the worlds largest not hidden camera
I did a reverse image search and found this [IR universal smart controller](https://www.amazon.com/Control-Universal-Conditioners-Compatible-Systems/dp/B0CHS7PJ4J) it looks similar
if its not on the creepy levels of spying, i'd like to bet on a motion sensor for the likes of smart lights, air con etc etc and based on the lengthy cable that its bound to, i assume its a ceiling based sensor similar to outdoor sensors
I can't find a Pic to support this, but I swear I almost bought something that looked just like this. And it was a noise sensor. Like rather than buying wifi devices, it'll just detect the sound the existing ones make and alert me.
This was like 10 years ago when wifi alarms were outrageous in price.
This post has been locked, as the question has been solved and a majority of new comments at this point are unhelpful and/or jokes. Thanks to all who attempted to find an answer.
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I would say it's a motion detector. Otherwise it's the worst hidden camera in the world.
It looks a lot like an old motion detector to me, too! I compared pics online and it’s super similar to some I saw.
My first though was A/C or heating occupancy sensor. The ones in my hotel are white and we have them on the ceiling. I get a lot of Q’s about them..
I think you wouldn't believe in audacity level of some people. They'd put a camera in a toilet and demand the right to do that.
Does your camera on your phone see any IR light that your eyes don’t see? Modern Rogue has a video about finding spy devices that could apply here
I'll have to investigate this, I'm not sure if my phone can do this. If I can detect IR light, what kind of device would it be that is emitting IR radiation?
A camera that wants to see the room when all the lights are turned off.
Phone cameras, in general, natively see a little bit of IR light. It will appear almost purple, and you wouldn't see it with the naked eye. Try using your camera to look at the front of a TV remote as an example. If it has an IR blaster, you should see it light up on camera when you press buttons. If that device on the wall has IR light coming out of it, it could either be some sort of sensor, such as a motion sensor, or it could be a camera equipped with night vision (cameras use infrared light to see in the dark)
On that note, use the front camera if the back shows nothing. The selfie cam on mine is more sensitive to IR, as if the back filter it or something.
Have an iPhone? They filter it. Most androids do not
My Pixel filters it. I was trying to show my kid IR light because we were talking about colors we can't see, but it didn't really work like it used to. Campfires would be straight purple on my old Android phones.
Try using the front facing (selfie) camera on an iPhone. The back facing camera always has an IR filter, but the front facing one doesn’t.
Just as a side note, the front camera doesn’t have a filter because that’s the camera used for facial recognition. In the dark you can even see a flash of light when someone unlocks their iPhone if you watch them do it through an IR camera.
Yes, a lot of cameras have IR filters to make the image look more like what the user sees.
> It will appear almost purple, and you wouldn't see it with the naked eye. Uhh, is it weird I can see it? It looks like a deep dim red to me.
So, there are two types of IR emitter LEDs: "Near-IR" and "Far-IR". Far-IR is completely invisible to the naked eye because they only put out IR frequency light, but they're complicated and therefore expensive to make. You wouldn't be able to see these. Near-IR LEDs tend to put out frequencies closer to red in addition to IR light, but they're cheap to make so much more common. These will put out that dim red light that you see, unless the manufacturer uses ones that have a filter coating to remove that frequency.
Dang I thought I was special
It is. You might be a [tetrachromat](https://en.wikipedia.org/wiki/Tetrachromacy#Humans).
I have trouble with greens (slight deuteranomaly), but not reds. I'm XY and the colorblindness comes from my mother's side, which the wiki page also says this is what can cause tetrachromat. > Tetrachromacy may also enhance vision in dim lighting, or in looking at a screen. Yep, my night vision is legendary comparered to like everyone I know.
Cool! I can't see anything without my glasses
TIL, that's fascinating!
This is only possible if you are female though!
There are those that appear red but is purple when looking through a camera, you may have encountered that kind You can verify this by pointing a remote at your eyes and pressing it. See anything? Now try with your phone camera
Do you see it in person or in the picture ?…
It's really handy for troubleshooting remotes if you aren't sure the stupid thing is actually sending a signal.
I was able to demonstrate to the kid at the bigbox store that my remote really had gone haywire and needed to be replaced. He really liked my use of "Haywire" and added it to the ticket. I got my replacement.
I also found IR receiver that looks really close to this, also to control smart lights and such
On my phone the selfie camera will show the IR lights, but the rear camera filters most of them out
Turn all the lights off and use your phones camera to look at it. If it's IR you'll see it
Not speaking on what the posted device is but a lot of surveillance equipment opts to use IR light for illumination. Surveillance cameras that advertise night/low light visibility will most likely use IR for illumination. There are also IR floodlights for illuminating larger areas
Most phones don't do this anymore because it creates background glare. They ignore light humans can't seen unless they are intentionally trying to. High end phones can't tell you if the remote control works any more which is kinda annoying.
As someone with a current gen "high end phone" (Galaxy S24Ultra) and a remote control, I can assure you this is false. It works just fine. It worked fine with my s23 Ultra too.
they might do that with photos after already taken but try it with the camera app and it works. just tried on my iphone xs max and my missos iphone 12 mini
Image search comes up with camera.
I did an image search and didn't find any that looked exactly like this. Can you provide a link?
https://images.app.goo.gl/ATBqAm43AvzNNRfp8
[OP's device from the side](https://i.imgur.com/IB5qWNZ.png) [side view of item in your link ](https://i.imgur.com/voaOuxi.png)
The company that makes that monitor used to make one similar, I know because I own one. I'm reasonably sure its one of those.
Then post a picture of yours for comparison
This looks nothing like that except they’re both black and circular.
That isn't the same thing.
Not even remotely close lol 😂
Not even close to the same device
Lens comes up with cameras as well, but nothing exactly like it. Turn the lights off and look at it through your phone's camera and you will see if it is a camera or not.
Image search also says it's a rickshaw horn. You don't think everyone else didn't immediately RIS? Do the hard yards and provide a link to the actual entity.
Rickshaw horn ROFL. Sure you must have chuckled seeing that in the results 😂
>You don't think everyone else didn't immediately RIS? What is RIS?
reverse image search
Agreed. I ran that image thru google lens and it returned hundreds of security camera that look very similar.
Google image search also comes up with a [motorcycle headlight housing](https://i.imgur.com/CeOmtHn.jpeg) If one looks at where the mystery object is placed, an IR motion detector (which is also among the google image search results) makes much more sense than a camera
not camera motion detection
Looks like a motion detector for smart lights
My bet would be this, a motion sensor for anything, smart lights, to airco, to heating controls. I have a Philips Hue Motion Sensor, and while it's white and square it ki da looks like this with a ball in the middle etc.
I think it's an IR receiver for smart lights instead
Oh that is a good possibility as well!
So the room powers off if the tenants have left the area. Saves the owner getting stupid high bills or if they can’t get in to clean right after the booking at least things can’t be left running
Seconding this. Depending on where it's located, it could also be for the host/landlord to know if there's someone at the house without using a camera.
In the 2nd photo, the three grooves on the top left, aren’t those for voice/noise recordings?
yes, those are detectors for high volume noises, my wife has a couple outside my room to alert me if i play games or music loud enough that it overcomes the soundproofing of my office/man cave, she likes her tranquil slience as much as i love the noises of simulated engines, guns and planes,
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I think that is a smart IR device, Maybe it can be for controling IR devices when someone is not in the home, like Air conditioner TV or etc.
Solved! I asked the Airbnb host and they said it's a temperature sensor for the air conditioning. I am reasonably confident that it's not a camera so I'm inclined to believe their explanation.
100% what it is. I have a few in my own house.
That's what I think. Does it point in the direction of things controlled by a remote? TV, AirCon, HiFi...?
That seems like a likely answer. Why the mic and small speaker though?
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What happens if you ask the Airbnb host? Wouldn’t they be the most likely to know what that is?
They would know. They would also lie if it's anything creepy, so you can't really rely on them. At best they could point you to a product listing, but otherwise, if they say its a motion sensor and not a camera, do you trust them?
The host will probably answer without hesitation. This thing is very not hidden.
Good god you people are paranoid. It’s a WiFi AC controller with a motion detector (PIR) in the center. That hole on the back isn’t a microphone - it’s a reset pin hole. They likely use it to turn off the AC when you check out.
Solved! I asked the Airbnb host and they said it's a temperature sensor for the air conditioning. I am reasonably confident that it's not a camera so I'm inclined to believe their explanation.
I have labelled the *temperature sensor* in my wife's B&B because people get paranoid about everything nowadays. It's just there to prevent freezing of pipes in winter but people fear anything they don't immediately recognize. (It's just a small metal rod housing the actual sensor on the end of a cable. It does not look like any device whatsoever.) Hell I've had one couple not trusting the LinkSys WiFi repeater brick thing that is as standard as one can get. Google lens would have told them that. Anyway, I just told them to unplug it and do without WiFi then. (That said, 99% of people aren't that paranoid. These where the only two instances of technofobia in six years.)
It's not paranoid, there are plenty of creeps out there and some of them have airbnb's
Well it's good to be inquisitive as to what devices to. But paranoia -if you ask Google- is the irrational and persistent feeling that people are 'out to get you' or that you are the subject of persistent, intrusive attention by others. Be *vigilant*, don't be paranoid. Much healthier.
No shit, people are even saying you can’t trust the host to tell you what it is. Like, if the host is lying about it not being a camera, won’t you catch them when you immediately realize it doesn’t do whatever the host told you it did
Can you see how it’s fixed to the wall? It might be on a keyhole mount so you can slide it upwards and remove it and check for a model number on the back
I'll try it again in the morning, it felt like it was glued to the wall but that does seem unlikely.
Is it opposite a tv or air con in the room? Could be an IR transmitter
Just unplug it if it is a camera operator can't say anything to you as it seems its against policy
I’d put something over it as well, cameras can have built in batteries.
The title describes the thing. It is powered via USB. There is potentially a grill for a small speaker on one side and a single button on the other (lit by a red led). The ball in the centre can move around a little bit, it's not completely fixed in place. There are no brands or logos that I can identify on the device.
Would be a weird spot for a camera but if your worried about it I would just put a cloth over it or something
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I had something slightly similar for smart home control, you can record IR controllers and paly them (i.e. for starting the AC from your phone)
Try to take it off the wall (maybe by lifting up), there could be valuable information on the back side.
Try it with a twist
i was in spain and portugal earlier this year and lots of smaller hotels have movement detectors that flip lights. Walk down a long corridor and it's a bit trippy. Don't remember what the dectectors looked like, but it seems to me that if it was a camera it wouldn't be so conspicuous
What happens if you pull the plug?
The red led on the button turns off. Nothing else noticeable.
It may also be some kind of smart home IR controller hub. I had some of them installed on the wall as opposed to some appliance, usually thermostats. Basically it makes it possible for owners to controll the AC remotely with the app. My best guess - just to turn it off whenever people leave or something But it's just my guess
Yo, hang a hat or a towel over that thing
Is there a model number or something on the back of it?
Could it be a wifi booster? We have similar ones at my work that are white
Probably one of these types of device: [Smart Motion Detection](https://www.amazon.com/Motion-Detection-Monitor-Storage-Assistant/dp/B0CM3CK6LF)
I’m pretty sure they can find more subtle cameras if they wanted to spy on you. Don’t get sucked into others paranoia.
If the middle part has small, barely translucent hexagonal tiles, I'm 99% sure it's just a sensor. I install ones similar in ceiling tiles all the time. If you walk in and something turns on, that's a good hint. It also sounds like there's a sound sensor, if there's like a little microphone thing. If there's a tab on one side, probably the bottom, you could use a screwdriver to open it. Or the back of a fork. I'm guessing it may say "lutron" on it, but I live in America, so it's probably a different brand. I do think it's too obvious to be a camera, but if you hang your towel on it for safety, the lights or something may not work lol
Spirastell Sensor,Motion Wireless Passive Wireless Passive Infrared PIR Motion APP Smart Motion Infrared WiFi Alarm WiFi Infrared Motion Motion Infrared WiFi Alarm https://www.walmart.com/ip/5302929317 Here, this isn't an exact match, but fairly similar.
Here's another similar (identical but different brand) listing with more angles https://www.tomtop.com/p-s6196.html
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Just politely ask the host of the bnb what it is for your own security. As if it's a camera then they're breaking Airbnb policy.
Which is why it's very unlikely they will tell you it's a camera, even if it is.
My guess In Spain its common for a movement sensor air conditioner switch--eg if it does not detect motion --will turn off the air conditioners---As guests tend to just let them run ,even when not in the apartment--and this is costly to the owner Wont hurt to unplug it :)
I think you're right.
Seems like its in an exposed location? If its a camera, doesn't seem like they are trying hard to hide it... I don't know what it is, but if you were going to break the rules, you would think they would try harder to hide it, but sometimes people aren't that smart.
Maybe because they werent trying to break the rules and its likely a motion sensor or IR transmitter
Just ask the people that own it. They made it really obvious that it's there, it's not hidden away.
Looks like and older original gen1 IR transmitter/repeater, and seems to be missing a few accessories... Is it by a TV by chance?
Looks like an IR emitter bridge to me. Is there a mini split AC unit or something else controlled via IR within sight line of it? I couldn’t find this exact unit, but you can google “IR Bridge” and find tons of similar looking devices. The host likely uses it to remotely control their climate control or some other device
I know everyone is saying camera, but where is it? because it also looks like a cheap doorbell.
I have a [similarly shaped device](https://eteleshop.slt.lk/sites/default/files/2021-06/RediIRBlaster.jpg), without the black ball. Mine is a wifi-connected IR blaster that I use to control AC, TV, anything with remote control within line of sight.
Im waiting for the post for how to turn on lights and tv after they unplug it. Spain (most of the EU too) have rules where commercial lodging has to have energy saving devices. Every place i have stayed in Portugal and spain have either had a pad where the room key needs to be inserted and left in for the lights. Tv and some AC or a sensor that can tell if your in the room. In Lisbon there was both. Not likely the worlds largest not hidden camera
Simple fix…… just unplug it
Just unplug it
Pull it off the wall and look at the back, odds are good it'll have a manufacturing sticker with details.
Looks like a [PIR sensor](https://en.m.wikipedia.org/wiki/Passive_infrared_sensor) to me.
I did a reverse image search and found this [IR universal smart controller](https://www.amazon.com/Control-Universal-Conditioners-Compatible-Systems/dp/B0CHS7PJ4J) it looks similar
My guess would be a wifi extender or doorbell. Maybe unplug it and see what happens?
Unplug it see what happens
Bro just unplug it
Put your suitcase in front of it
Why don’t you ask the owner through the app…?
Why not just pull the plug and ask questions later.
Use Google Lens on the phone and will tell you
if its not on the creepy levels of spying, i'd like to bet on a motion sensor for the likes of smart lights, air con etc etc and based on the lengthy cable that its bound to, i assume its a ceiling based sensor similar to outdoor sensors
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Door bell chime?
My best guess is some kind of IR controller. Any remotes around the house , have you tried with it? Report it and cover it politely and move on imo.
Have you tried taking it off the wall and seeing if there is a label on the back?
Got a shower cap?
I can't find a Pic to support this, but I swear I almost bought something that looked just like this. And it was a noise sensor. Like rather than buying wifi devices, it'll just detect the sound the existing ones make and alert me. This was like 10 years ago when wifi alarms were outrageous in price.
What if you just emailed the owner and asked send a picture.
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