Hacking the FLIR E4 thermal camera (2.3.0 resolution and menu hack) - Fubar.gr (2022)

Update 17 Dec 2015: New E4 cameras are coming with firmware version 2.8.0. The hacks cannot be applied on those cameras, however there’s some indication that it’s possible to downgrade to 2.3.0 firmware and then apply the hacks. Results so far have been inconclusive, with some cameras getting bricked in the process. If you have a 2.8.0 camera please wait and stay tuned. I will post an updated guide as soon as the problem will be sorted out. Thanks!

The FLIR Ex series is the latest line of entry-level thermal imaging cameras by FLIR Systems. The cheapest of the series is E4 with a resolution of 80 by 60 pixels, while the top of the range E8 has a 320 by 240 thermal image resolution.

However, Mike from Mike’s Electric Stuff in this teardown video found that the E4 camera is equipped with the same 320 x 240 sensor as the E8 and it is simply software limited to 80 by 60.

In this article I will describe step-by-step the procedure to unleash the full potential of the FLIR E4 and effectively convert it to an E8.

See here for some before and after the resolution upgrade photos: http://toolguyd.com/flir-e4-thermal-imaging-camera-enhancements/

Also see this video to get an idea of how the extended menus look like:

The procedures, scripts, hacks, etc. are not mine. The hack is the result of the hard work of several people from the EEVblog forum and specifically this thread. However, this thread is becoming quite a beast and all the good info is scattered all over the place.

What I am trying to do here is to make a clearly laid out guide for performing the hack, without having to rummage through the 500 pages of the original forum thread.


This guide is only for the E4 cameras with the 2.3.0 firmware. You can find the firmware version by going to Settings, Device Settings, Camera information, Software.

Edited April 15 2015:

If your camera has an older firmware, upgrade it first to 2.3.0 and then perform the hack.

There seems to be some issue with cameras that have been upgraded from 1.xx to 2.3.0. For the time being it is recommended to NOT upgrade the camera and use the hack technique for 1.xx firmwares described in the eevblog thread instead. I hope this problem will be sorted out soon!

If it has a firmware version greater than 2.3.0 you’ll have to wait until a new hack comes out. Check the EEVblog thread for updates.

This modification involves replacing some important files from within the camera’s internal operating system. The hack so far has been successfully performed on hundreds of E4 cameras, however when meddling with OS files there’s always the possibility of something going wrong and the camera may end up permanently BRICKED!

Don’t blame me if this happens!

Also performing this hack could result into voiding the warranty and/or legal action against you from FLIR Systems or the United States government.

You are entirely on your own here.

(Video) #40 - Hacked FLIR E4 thermal camera demonstration

I will also show the procedure to revert the camera back to its original state. But it is quite possible that there are tamper counters inside the camera. In that case, even if the camera is reverted back to normal, FLIR repair personnel will still be able to tell if the camera has been tampered with and may void your warranty.


Enough with the disclaimers, let’s cut to the chase!

What you will need:

1. A computer running Windows XP 32 bit or Windows 7 32 bit.

There have been some reports of the hack being successfully deployed from Windows 8, 8.1 or 64 bit Windows versions, but it’s mostly hit-and-miss.

So it is strongly recommended to find a Windows XP or 7, 32 bit PC. To see which version of Windows you have, right click on My Computer and select Properties.

The image below is from my laptop, Windows 8.1 AND 64 bit, not good!

It also works from a virtual machine too. Actually, all screenshots below are from a Win7 x32 virtual machine running on Oracle VM Virtualbox. However, and especially if you don’t have experience in using virtual machines, I’d recommend to use a physical machine.

2. FLIR device drivers

Download and install the drivers from here: http://cdn.cloud.flir.se/swdownload/assets/other/flir_device_drivers.exe

3. FLIR Tools

This is the older 4.1 version that is compatible with XP too. Download and install them from here: http://cdn.cloud.flir.se/update/flir tools/4.1.14066.1001/flir tools.zip

4. Python 2.x

Python is a programming language and is needed for running the hack scripts. Don’t get the newer 3.x versions!

Download it from here: https://www.python.org/ftp/python/2.7.9/python-2.7.9.msi

When this dialog comes up during the installation, click the little box on the left of Python and select “Entire feature will be installed on local drive”, then click next and finish the installation.

Edited, 21/09/2015: When the installer finishes, restart the computer, else the python scripts described later in this guide might not run properly. (thanks tomarcins, from the comments)

5. Filezilla

Filezilla is a free FTP client. We will use it to move files to and from the camera filesystem. Download it from here: https://filezilla-project.org/download.php?type=client

6. Script pack

Download the script pack from this link: FLIR_E4_2.3.0_hack

This pack contains the files found here and the 2.3.0_menu_2014_EX_6_fix.zip found here. I am not taking credit for any of these. I simply combined all these files into a single convenient zip file.

There are three folders in the zipped file, FLIRfif, FLIRmenuhack and FLIRreshack. Copy these folders to the root of the system hard drive (C:\).

General description of the hack

The procedure can be broken down in three parts

  1. Switching camera to RNDIS mode
  2. Increasing resolution to 320 x 240 (resolution hack)
  3. Enabling PIP, extra measuring options, color palettes, etc (menu hack)

Switching camera to RNDIS mode

Normally, when the camera is connected to a PC via USB it is recognized as an external storage device (similar to a USB stick) and the captured photos can be accessed. By turning the RNDIS mode on, the camera is converted to a virtual FTP server and then we can gain access to the embedded OS files.

Assuming you have installed all the software and drivers I mentioned earlier, we can start.

The first step is to connect the camera to the PC using the USB cable provided. Windows will detect the camera and automatically install the drivers:

When the installation is complete, navigate to C:\Program Files\FLIR Systems\FLIR Tools\bin\ and run FLIRInstallNet.exe

(Since we will be using this program a lot, it is a good idea to make a shortcut to the desktop)

Under Camera you should see FLIR USB video. That means the drivers were installed correctly and the tool can communicate with the camera.

Hit Browse… , navigate to C:\FLIRfif, select Set_RNDIS_permament.fif and hit the Run FIF button.

Don’t worry about the permament [sic] in the file name, this can always be reverted by repeating the procedure using the Remove_RNDIS_permament.fif file instead.

When the program has finished running, remove and replace the battery from the camera to do a hard reset (the camera doesn’t turn off completely with the on-off button, it simply goes to low-power mode).

Turn the camera on. Windows will again start searching for drivers, because now it is in RNDIS mode and needs a different set of drivers.


When the camera is in RNDIS mode and connected to the computer, it is possible that your Internet connection will go down. This is normal and your Internet connection will be automatically restored when the camera is disconnected.

So, don’t do anything that requires Internet at the same time!

When it has finished, go to Start, Run… (or alternatively, press the Windows logo button on the keyboard and ‘R’ at the same time). On the window that pops up type cmd and press enter.

This will bring up the command line interface. Now type ipconfig and press enter. This will do an enumeration of all network interfaces currently on the computer. Scroll a bit to the top and you should see this:

The word INFRARED is a dead giveaway!

Write down the Default Gateway. This is the IP of the camera, in this case

There have been reports that if the 192.168.0.x network is already taken, the camera will switch to, etc.

Now run Fillezilla. On the quick connect boxes enter the host IP ( in this case), username: flir and password: 3vlig and hit Quickconnect.

If you haven’t used Filezilla before, there are two main panes. The pane on the left shows the local filesystem, ie. the files and folders of your computer. The right pane shows the remote device files and folders, in this case the files inside the E4 camera.

So far we haven’t really modified anything, so it is a good idea to make a full backup of the camera files. Select a folder on the left pane, where the backup will be stored. Then select all files and folders in the right pane, right click and select Download.

Some files and folders will fail to transfer, that’s normal. Note that some of these files are UNIQUE for your camera. You can’t simply copy the files from another E4, it won’t work since they are different files. So keep these files safe in case something goes wrong.

Resolution hack

Now we are ready to do the resolution hack. Close Filezilla and bring up the command line interface (Windows key + R, cmd)

Type cd \flirreshack and hit Enter

then type python apply.py apply (or whatever the camera IP is) and hit Enter

If you get: ‘python’ is not recognized as an internal or external command, operable program or batch file. then you forgot to tick the PATH option during the Python installation. Re-install python with the option enabled.

This is the expected output after running the script:

Microsoft Windows [Version 6.1.7601]Copyright (c) 2009 Microsoft Corporation. All rights reserved.C:\Users\user>cd \flirreshackC:\FLIRreshack>python apply.py apply v0.4 **** DISCLAIMER ****- You do this on your own risk.- By using this tool, you agree that you will remove the hack before selling the device.- TO REPEAT: UNDER NO CIRCUMSTANCES you are allowed to sell a device that has this hack installed.- Please also uninstall the hack before attempting to do any firmware upgrade.- This was only tested with a factory 2.3.0 E4.IF ANY OF THIS FAILS AND YOU NEED TO RESTORE THE ORIGINALCONTENTS MANUALLY: (which you shouldn't need to, but justin case...)A backup directory of relevant files is created for each "apply".Simply upload the files manually using FTP. You may have to run"stopapp" before you can overwrite common_dll.dll.Make sure you keep a good backup of your .CFC files. They arestrong-signed so if you lose all your backups and the on-devicefiles, _THEY ARE GONE_.(This script backs them up when you "apply", though.) = CONNECT TO FTP = CREATING BACKUP DIR backup-20150330124652 = RETR /FlashBFS/system/common_dll.dll = RETR /FlashFS/system/appcore.d/config.d/conf.cfcApplying 1 bytes of delta at 000053c7Applying 1 bytes of delta at 000aeedfApplying 4652 bytes of delta at 0000042c * stopping application... * uploading common_dll.dll to /FlashBFS/system/ * failed (error_perm('550 File unavailable (e.g., file not found, no access).',)). * attempt 2 * failed (error_perm('550 File unavailable (e.g., file not found, no access).',)). * attempt 3 * failed (error_perm('550 File unavailable (e.g., file not found, no access).',)). * attempt 4 * uploading conf.cfc to /FlashFS/system/appcore.d/config.d/ * PLEASE HARD-REBOOT DEVICE.C:\FLIRreshack>

The script retrieves files /FlashBFS/System/common_dll.dll and /FlashFS/System/appcore.d/config.d/conf.cfc and backs them up in the backup-xxxxxxxxxxxx folder. Beware, the backed up files are UNIQUE to your camera, if you lose them you will never be able to revert it to its original state. So take good care to not delete them.

Then it generates a new common_dll.dll and conf.cfc files (saved in C:\FLIRreshack\) and replaces the original files in the camera with the generated ones. As seen in the printout, the script returns a 550 error, but after a few retries it manages to push them through.

Hard reboot the camera by removing and replacing the battery. Turn on the camera again. The crosshair will be off-center. Disable it from the camera menu and re-enable it and it should be centered again.

Now the thermal image should be much crispier. Congratulations, you now have a 320 x 240 resolution!

Reverting the resolution hack

To remove the resolution hack and bring the camera back to its original state,

First make sure that the camera is in RNDIS mode and check with ipconfig as shown in the Switching camera to RNDIS mode section of this guide.

Copy the original common_dll.dll and conf.cfc files from the backup folder (C:\FLIRreshack\backup-xxxxxxxxxxxx) to C:\FLIRreshack\. This will overwrite the modified files, but it doesn’t matter because they can be generated again with the method shown above.

Then type python apply.py revert

This should push original files back to the camera and bring the resolution to the original 80 by 60.

Menu Hack

You can do the menu hack independently from the resolution hack. To do it, first make sure the camera is in RNDIS mode with ipconfig.

Then connect to the camera with Filezilla as shown before. Using the right pane, navigate to /FlashFS/System/appcore.d/config.d/ and right click on the conf.cfc file and download it to C:\FLIRmenuhack\

Go to command line interface (Windows key + R, cmd) and type:

cd \FLIRmenuhack

python menu_conf_e4.py

This will rename the original conf.cfc file you just downloaded from the camera to conf_reso_only.cfc and generate a new conf.cfc in C:\FLIRmenuhack.

Using Filezilla again, replace the conf.cfc found in /FlashFS/System/appcore.d/config.d/ with the one you just generated.

Then, runFLIRInstallNet.exe from C:\Program Files\FLIR Systems\FLIR Tools\bin\

Select the 2.3.0_Menu.fif from C:\FLIRfif\ and click on Run FIF.

When it finishes, your camera will have the E8 menu options!

Reverting the Menu Hack

To revert the menu hack, runFLIRInstallNet.exe from C:\Program Files\FLIR Systems\FLIR Tools\bin\

Select the 2.3.0_Menu_Restore.fif from C:\FLIRfif\ and click on Run FIF.

Then take conf_reso_only.cfc found in C:\FLIRmenuhack, rename it to conf.cfc and upload it to /FlashFS/System/appcore.d/config.d/ overwriting the file under the same name that is already there.

Do a hard reset on the camera and when restarted you should see the original E4 menus.


Can a FLIR camera be tracked? ›

ThermaTrak from FLIR, developed with GadgetTrak, employs recovery software that pinpoints the geographic location of the lost, stolen or missing infrared camera.

What does FLIR detect? ›

A FLIR thermal camera can detect tiny differences in heat—as small as 0.01°C—and display them as shades of grey or with different color palettes. The same image with heat differences displayed in the ironbow and white hot palettes. Everything we encounter in our day-to-day lives gives off thermal energy—even ice.

How far can FLIR see? ›

There is no practical limit to how far a thermal camera can see through a clear line of sight. The Moon for example is often visible when not obscured by clouds (water vapor absorbs IR energy).

How do I connect FLIR to my computer? ›

How can I connect my FLIR Ethernet camera to FLIR Tools?
  1. Open Programs and Features in the Windows Control Panel.
  2. Select FLIR Tools from the list.
  3. Click the Change button.
  4. Click the Options button and click "Network Camera Support". Then continue with the installation.

What device can see through walls? ›

The Xaver 1000 is a portable scanner that allows soldiers to “see” through walls. The device can differentiate between different sized humans, animals, and even identify body parts. The system uses artificial intelligence to track movement patterns, giving users a leg up on enemies.

Can FLIR see through walls? ›

No, it can detect heat from the wall near the surface that there is an issue, but not what is behind the wall. However, if there is something that is causing a difference in temperature in the wall, it will pick it up.

Can a thermal camera see through clothes? ›

Can Thermal imaging cameras see through clothing? No, thermal imaging cameras can detect the temperature of the cloth but will not see through it.

Can my phone do thermal imaging? ›

This accessory turns your phone into a thermal camera - YouTube

Can FLIR see through fog? ›

Although thermal imaging cameras can see in total darkness, through light fog, light rain, and snow, the distance they can see is affected by these atmospheric conditions.

How deep into the ground can a thermal camera see? ›

The subterranean limit for most radar is about 30 feet, El-Baz said. Infrared imaging, which detects surface-level heat differences above buried objects, is most effective to a depth of about five feet, he said, though it, too, has been used to track objects 25 feet down.

What is the difference between FLIR and thermal? ›

FLIRs make pictures from heat, not visible light. Heat (also called infrared, or thermal, energy) and light are both parts of the electromagnetic spectrum, but a camera that can detect visible light won't see thermal energy, and vice versa.

Can you see snakes with thermal imaging? ›

Against the background of other objects, humans, animals, or cars have higher temperatures, and they show up more clearly on the device's screen. However, cold-blooded animals like snakes, for example, would be virtually impossible to detect with a thermal imager.

What is the default password for FLIR cloud? ›

Log into the Client Software using the Client Software user name (default: admin) and password (default: admin) and then click Login. If you have systems that support FLIR Cloud™ Services, you can securely connect them using FLIR Cloud™ Client without any network configuration.

How do I get pictures off FLIR? ›

FLIR Tools can be used to import images from any mass storage camera. You can also copy and paste the images from the camera drive to a folder on your PC. The drivers will map the camera to a drive letter, usually Z:\, so you can copy and paste the images to a folder on your PC.

How do I connect my FLIR camera to my phone? ›

How to Wirelessly Connect Your FLIR Camera To An Android Phone

Can police helicopters see inside your house? ›

Police Helicopters can see into your home only when looking through a window with the HD color camera. The infrared camera is unable to look through walls, roofs, or structures because it only detects heat given off by an object. It can see if a house, room, or roof is hotter than its surroundings.

How do you hide from thermal imaging? ›

The best way to hide from a thermal imaging camera is to stand behind it. the biggest problem here is to understand that you are being watched from a thermal imaging camera and that you need to hide from it somehow. But if you know exactly how to hide, then you should become invisible to the thermal imaging camera.

Which camera can see through clothes? ›

YouTube channel Unbox Therapy took things a step further, demonstrating how the camera of the OnePlus 8 Pro can see through some items of clothing. In the video embedded below, Lewis Hilsenteger showed how the camera can see through his black t-shirt.

What material can block infrared? ›

To trap infrared light, Jiang and colleagues turned to a unique material called black silicon, which is commonly incorporated into solar cells. Black silicon absorbs light because it consists of millions of microscopic needles (called nanowires) all pointing upward like a densely-packed forest.

Does aluminum foil block infrared? ›

Any electrically conductive material will block infrared radiation. The greater the conductivity, the greater the blocking. ​Food wrapped in aluminum foil. Since aluminium foil is a highly conductive material, it will kill all infrared radiation.

Can FLIR see through glass? ›

They CAN'T See Through Glass.

How do you block an infrared helicopter? ›

How Can You Hide From Thermal Imaging Technology?
  1. Glass. One of the most effective methods to block IR is to conceal behind glass; if you are okay with carrying around a pane of glass, great! ...
  2. "Space blanket" ...
  3. Woolen blanket. ...
  4. Choose the right background. ...
  5. Warm clothes. ...
  6. Burn it out. ...
  7. Thick Netting.

Can infrared see through windows? ›

Can thermal imaging see through glass? Fun fact: glass acts like a mirror for infrared radiation. If you point a thermal imager at a window, you won't see anything on the other side of the glass, but you will get a nice reflection of yourself in thermal.

Can military see through walls? ›

The technology can display live objects, behind walls, in such high resolution that it can detect whether a person is sitting, standing, or lying down, even if they have been motionless for a significant period. Specific body parts are also detectable, the company said.

Is there a heat sensor app? ›

Seek Thermal is the best way to experience and visualize thermal energy while on the go, at work, indoors, or in the outdoors. With this free app and a Seek thermal imaging camera, you can quickly and accurately detect, inspect, measure, and visualize thermal energy from your smartphone or tablet.

Can iPhone detect thermal? ›

Your iPhone can detect heat and energy through darkness and physical surfaces, and not with fake filters or trickery. The Seek Thermal camera attachment is an actual infrared camera that reads light past the visible light spectrum.

Can FLIR see through water? ›

FLIR cannot see through glass or water, but it can see where cold water gets pushed up by the whale's passage. This is a phenomenon that was invisible to the naked eye and the rest of the team's equipment.

Can night vision see through water? ›

The answer to this question is unequivocal - yes, it does. Night vision devices are specially created for this purpose. Some night vision scopes are used underwater for military activities, search operations, diving, and sea hunting. Such equipment is waterproof and can be used for many purposes.

Does smoking block IR? ›

Soot particles in smoke effectively block visible light, but allow infrared radiation to pass through, letting firefighters or other first responders navigate through smoke-filled environments.

Can a thermal camera see through floors? ›

A thermal imaging camera can detect heat patterns through flooring, thereby showing where a system is effective.

What is the difference between infrared camera and thermal camera? ›

Active IR systems use short wavelength infrared light to illuminate an area of interest. Some of the infrared energy is reflected back to a camera and interpreted to generate an image. Thermal imaging systems use mid- or long wavelength IR energy.

How do you read thermal images? ›

If you took a laser temperature meter, and pointed it at the different colors associated with the thermal image, each color will correspond with a particular temperature. Warmer surface temperatures will be in the red or yellow color range. And cooler surface temperatures will be in the blue or purple color range.

Can you see deer antlers with thermal imaging? ›

Typically, deer have antlers so the thermal should be able to definitively tell you that none of your deer have horns. With a thermal, you can see the antlers when they are growing in and there is blood running in them. When they stop growing and harden you most likely can't see them, especially at any distance.

Which animals can see infrared? ›

Infrared light has longer wavelengths and lower energy than visible light and cannot be seen with the human eye. Mosquitoes, vampire bats, bed bugs, and some snake and beetle species, however, can use portions of the infrared spectrum for vision. Sometimes humans can “see” infrared energy in the form of heat.

What's better for hunting thermal or night vision? ›

Thermal scopes can easily detect animals or moving objects from a long distance whether it is day or night. Their detection is better than night vision scopes. Even in the roughest weather, they can help you see (except in extreme cold).

How do you find a hidden snake in your house? ›

How to Find Snakes Indoors Snake Inspection - YouTube

Can infrared cameras see in the dark? ›

Because infrared cameras measure light that is not visible, they can work in darkness as well as daylight.

Can you see infrared light in the dark? ›

Neither is visible to the human eye. Infrared light does not depend on visible light—IR light can be detected in dark or obscure conditions. Almost everything gives off infrared light as heat. If human beings had eyes adapted to see infrared, they might be overwhelmed by all the glowing matter around them.

How do I find the IP address of my FLIR camera? ›

In the windows command prompt, type in the command arp -a . This will list all IP addresses on the local subnet. You can also use a tool like FLIR IP Config to find your camera. This only works with certain camera models but it is easy to use.

How do I reset my FLIR password? ›

To modify your DVR / NVR password:
  1. Launch the FLIR Cloud app on your smartphone or tablet.
  2. Tap the Menu button ( ...
  3. Tap your DVR / NVR listed on the Device Manager menu, and then tap Settings.
  4. Tap Modify password.
  5. Enter and confirm a new 6-character password for your DVR / NVR, and then tap the Save icon (
18 May 2018

How do I access FLIR cloud? ›

How to install and configure FLIR Cloud Client Software - YouTube

How do I use the FLIR app? ›

Quick Look: Introducing the New FLIR ONE Application for iOS - YouTube

Does FLIR one show temperature? ›

The FLIR ONE Pro will show you the temperature range of the scene, and allow you to adjust the temperature mapping, using a feature called IR Scale. To use, tap on the IR Scale icon in the Imaging Options menu. The scale will appear on the left side of the screen, with the high and low temperatures labeled.

What is FLIR ignite? ›

FLIR Ignite is a secure cloud storage solution that gives you a seamless experience to directly upload, edit, organize, store, and share images and videos from FLIR thermal cameras.

What app do I use for my FLIR camera? ›

Getting started with your FLIR ONE

Install the FLIR ONE app on your phone/tablet from the App Store (iOS) or the Play Store (Android). Turn on your FLIR ONE by pressing the power button and wait until the steady orange light changes to a blinking green light. This means that the camera is ready for use.

How do I connect my IP camera to my phone? ›

Dummies Guide to connect to an IP Camera from your smart phone

Can you find hidden cameras with a thermal camera? ›

The easiest way to find a hidden camera is with a thermal sensor. You can get a used FLIR for around $100.

Can infrared detect hidden camera? ›

Hidden cameras such as lighter camera, pinhole camera, watch camera or pen camera can be easily and quickly detected by the infrared of the safe personal alarm, effectively protecting individual privacy when you are in a hotel or any other places.

What can thermal imaging detect? ›

Thermography, or thermal imaging, detects infrared radiation to help see objects in the dark. Thermal cameras distinguish the relative temperature of objects around us to help us see warmer objects – like people and animals – against cooler backdrops, even at night.

Can infrared detect cameras? ›

If you haven't found any cameras yet, you can try looking for infrared lights. Most IP cameras use infrared for night vision. While infrared rays are invisible to the naked eye, you already have a device that can help—your smartphone.

How do you tell if your TV has a hidden camera? ›

How Do I Locate the Cameras and Microphones on a Smart TV? Cameras on Smart TVs are often found at the upper edges of the TV, on the bezels. A small circle for the lens usually denotes these cameras. If the unit has thin bezels, these cameras are hidden within this location, and usually are popped out when needed.

What type of light detects hidden cameras? ›

Usually hidden camera detectors check in one of 2 ways: IR light detection. Radio frequency detection.

Can a cell phone detect a hidden camera? ›

Yes, your cell phone can detect a hidden camera. All you need to do is download a hidden camera detector app. Once you have the app installed, simply open it and scan the area for any hidden cameras. The app will then alert you if any cameras are found.

How do you detect a listening device? ›

Use Several Listening Device Detectors

A radiofrequency detector can scan for transmitters. Turn off all wireless devices, including smartphones and routers, then slowly and carefully move the bug detector around your home. Anything that's broadcasting a radio signal will be found.

How do you know if there is a hidden recorder? ›

To detect hidden cameras and microphones, listen carefully for buzzing or clicking sounds since hidden cameras often produce faint noises. Also, inspect any smoke detectors and electronics in the room since people often hide cameras and microphones in devices that require electricity.

How do you tell if there are cameras in a room? ›

Turn on the flashlight and turn off the lights in your room. Pan the flashlight around the room. Go slowly and examine any suspicious positions from different angles. If you notice any reflective lights from an object, there might be a hidden camera there.

What material can block infrared? ›

To trap infrared light, Jiang and colleagues turned to a unique material called black silicon, which is commonly incorporated into solar cells. Black silicon absorbs light because it consists of millions of microscopic needles (called nanowires) all pointing upward like a densely-packed forest.

Does aluminum foil block infrared? ›

Any electrically conductive material will block infrared radiation. The greater the conductivity, the greater the blocking. ​Food wrapped in aluminum foil. Since aluminium foil is a highly conductive material, it will kill all infrared radiation.

Can police helicopters see inside your house? ›

Police Helicopters can see into your home only when looking through a window with the HD color camera. The infrared camera is unable to look through walls, roofs, or structures because it only detects heat given off by an object. It can see if a house, room, or roof is hotter than its surroundings.

How do you tell if a smoke detector is a hidden camera? ›

Lens Detection

After locating the smoke detectors that are candidates for a camera, visually inspect the smoke detector and look for a small black dot and pinhole openings that provide the lens with perspective and a visual window. Like any camera lens, it will reflect and have a distinct visual appearance.

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