Best Thermal Imagers in 2022

Last update: December 25, 2022

Are thermal cameras legal?

There is some debate over whether or not thermal cameras are legal in the United States. While there are no specific laws against using thermal cameras, some people argue that they violate the Fourth Amendment of the Constitution, which protects against unreasonable searches and seizures. Others argue that thermal cameras are a valuable tool for law enforcement and should be allowed. Ultimately, the legality of thermal cameras is still being decided by the courts.

Can a phone camera see infrared?

Yes, a phone camera can see infrared. The camera on your phone is actually made up of two parts - the lens and the sensor. The sensor is what captures the image and the lens is what focuses the light onto the sensor. The sensor is made up of millions of tiny light-sensitive cells called pixels. Each pixel is actually made up of three smaller pixels - one red, one green, and one blue. When the camera takes a picture, the sensor records the amount of light that hits each pixel. The camera then uses this information to create an image. Infrared

Can Helicopters see inside your house?

The short answer is no, helicopters cannot see inside your house. However, there have been instances where law enforcement has used helicopters to surveil a property from above, in hopes of catching a glimpse of illegal activity taking place inside. In most cases, however, the helicopter would need to be very close to the house and at a low altitude in order to see inside.

Can I get a thermal camera on my phone?

If you're looking for a thermal camera, you'll be happy to know that there are a few different ways to get one on your phone. One option is to download a thermal camera app, which will give you the ability to take thermal images and videos with your phone's camera. Another option is to purchase a separate thermal camera that can be connected to your phone. Whichever route you choose, you'll be able to take some amazing thermal images and videos that you can share with your friends and family.


220 x 160 IR Resolution Infrared Thermal Imager, Handheld 35200 Pixels Thermal Imaging Camera,Infrared Thermometer with 3.2" Color Display Screen(Battery Included) Review:


For the price, it's an excellent value. It will work just fine to account for parallax. Both cameras' minimum focus is around 6". It works perfectly as is for my major use case, property upkeep. One millimeter of a feature will be resolved at the closest focus distance. Several minutes after I turned on an MSP430G2553 LaunchPad, here is a thermal-only image of it. The microUSB connector is in the lower right corner, where you can also notice the heating caused by power. The LED and what appears to be a voltage regulator are located directly above that. I can't read them since they have marks that are laser engraved and extremely microscopic. The cables for the serial port are the dark lines. One to power the 5 V to 3.3 V level shifter and one for Rx-Tx. They are less than the minimum concentration distance because they are only a few inches above the board. The four smaller dots, which surround the larger dot in the upper left, have a diameter of around 1 mm. The heat loss from my stove vent hood is depicted in the second picture. My tea kettle is depicted in red.



PerfectPrime IR0005 Infrared (IR) Thermal Imager & Visible Light Camera with IR Resolution 35,200 Pixels, Thin Size, Black Review:


One of the most affordable all-in-one thermal cameras I have seen is the IR0005 Thermal Camera. The IR0005 is designed for experts like builders, home inspectors, plumbers, electricians, and anybody else who can regularly find a suitable use for heat-based imaging, making it a reasonably affordable business expense. Additionally, the camera's durable, smartphone-like design makes it portable and tough enough to operate in muddy or rainy conditions.The IR0005's design is fantastic. It has a large, angular plastic and rubber shell encircling a 3-inch touch screen, giving the impression that it is an extremely durable smartphone. The camera's back resembles the iPhone minus the calibration lever, and its optical sensor and thermal imager are both located atop a large circular protrusion.The IR0005 is more obviously designed for professionals and handymen rather than casual consumers and is less of a novelty or toy than the other models. I've already utilized it for practical purposes including spotting issues with insulation and electrical components. It may be used in practically any scenario thanks to its tough design.In contrast to other thermal imagers that are sold out of the box, the IR0005 is a one-piece solution for thermal imaging rather than requiring any further accessories. The IR0005 is the greatest thermal imager on the market if you're seeking for entertaining and practical uses for it around the house. The IR0005 is a good alternative to take into consideration if you're going to utilize thermal imaging every day when creating or fixing things as part of your employment, especially if a higher-end thermal imaging device is out of the question.



New Higher Resolution 320 x 240 IR Infrared Thermal Imaging Camera. Model HTI-19 with Improved 300,000 Pixels, Sharp 3.2" Color Display Screen, Battery Included. Lightweight Comfortable Grip Review:


I should point out that this is my first thermal imaging camera. However, I did quite a bit of research before making a purchase, which includes reading and viewing YouTube videos. The majority of the movies were produced with various FLIR models, which were far more expensive. I cannot distinguish between them. The only major distinction I can make between camera models is the resolution and whether or not the download is done via WiFi, which would be quite practical.Utilization is simple. If you've never used one, I do suggest watching some demonstration videos. There are ways to frame the picture to get the best possible picture. I have already discovered a ground fault plug that requires investigation and an insulated furnace vent.I'd be really curious to compare this device against a FLIR model with an equal resolution to see if there is any actual difference besides pricing. I haven't seen any differences in the thermal imaging videos I've viewed about home inspections.



FLIR ONE Pro - iOS - Professional Grade Thermal Camera for Smartphones - with VividIR and MSX Image Enhancement Technology Review:


I looked into and considering buying one when Flir unveiled their first thermal imaging accessory for smartphones, but it had too many drawbacks for my purposes. They later debuted their third version, the Flir One, and I was so impressed with the improvement that I ordered one in advance from the manufacturer about a month before they made it available to the general public in August 2017. Even though I later regretted buying the less sophisticated of the two devices they offered at the time, it was still incredibly helpful to me. The major drawback was that, despite the high quality of the thermal imagery, it was difficult for me to relate the temperature variation to the materials I was using because of the poor spatial relationship to the job or project.I watched to see what their next generation would offer and for a while lost track of what they were up to until I noticed an advertisement for this model, their newly enhanced pro version, which is also available in a pro lite form.WHAT IS DIFFERENT ABOUT ITI questioned Flir, and their response was quite basic. "A more powerful thermal sensor combined with sophisticated image processing, VividIR for crisper and clearer thermal images, more camera capabilities like multiple spot meters, customisable regions of interest, IR scale, and scene dynamic rage of up to 400 C (752 F)," they claimed of the PRO. The information below elaborates on their response.Among other things, there are three prominent features that made me want to upgrade. One benefit of higher resolution is that it now much more effectively matches the capabilities of my iPhone Xs Max. improved circuitry that enables me to overlay the thermal images of the thing I'm imaging on top of it. Thirdly, my former model's fragility was always a letdown; this one is far more durable.IN RELATION TO THE FLIR ONE- Thermal Resolution: 80 x 60 pixels per One. 160 × 120 pixels for PRO- ONE = -20 °C to 120 °C (-4 °F to 248 °F) PRO = -20 °C to 400 °C (-4 °F to 752 °F) Object Temperature Range- Thermal Sensitivity (lower mK equals more sensitivity and a better image) PRO = 70 mK; ONE = 150 MkImage enhancement with VividIR: ONE = No PRO = Yes- MSX exclusively for image presentation PRO for infrared, visual, and galleryBattery life for both versions is one hour.DEAR APPWhen the FLIR ONE Pro is attached instead of the more basic model, the app automatically detects this and then provides a variety of pro-capable tools, such as radiometry—the ability to take precise temperature measurements—and even multiple temperature spots for situations where it is crucial to identify temperature differences in a scene. The FLIR ONE Pro streamlines communications and reduces time spent on the job site by enabling users to evaluate images and transmit reports to their clients immediately after collecting an image or video.NO OR YESYou must be aware of what this tool is and how to utilize it, I'm guessing. If not, may I recommend that the greatest place to learn is not through reviews, including mine. The manufacturer is in a far better position to instruct you than reading someone else's viewpoint because they have access to a variety of information, including videos and case studies. The contrast between this most recent PRO model and the entry-level model didn't particularly impress me. Perhaps I don't require some of its more sophisticated features on a daily basis, but that doesn't mean I don't appreciate their existence. In the past, I've purchased far too many tools that lacked capabilities I assumed I would never use and was dismayed when the time came that I only needed it once. The most notable quality that everyone can notice is how much the visual camera's image has improved, making it easier to perceive the thermal image superimposed over it. This is a really significant function, in my opinion, and is worth at least some of the price difference whether you use it for your personal measurements or to demonstrate to a client. These items aren't cheap, and the PRO is noticeably more durable; in contrast, the basic model feels incredibly fragile. The PRO level automatically kicks the app into high gear with a ton of features and options that the basic model(s) lock out, which may be the largest difference. Like I said, even if you don't use them frequently, they are still there and, in my perspective, it helps offset the remaining cost difference. So sure, if you're going to do it at all, I recommend spending an extra $100 because you won't regret it.



USA Gear Hard Protective Thermal Imager Carrying Case - Compatible with FLIR C2, C3, Seek Reveal, XR, PRO, Fastframe XR, PerfectPrime IR0005 and More Thermal Imagers - Black Review:


I liked that a USB charging cable was included.There's always a 50/50 chance you'll need to plug it in twice before it goes into the device with the "Android" USB small connectors, which I detest. I don't see why more people don't switch to the "Lightning" APPLE-style connectors. A connector that has been carefully designed will have a bi-lateral symmetrical pin configuration to ensure that it is plugged in correctly the first time, every time. Every terminal board, jack, and plug that I make or have made are foolproof, including the Power input and Field I/O terminal blocks. Because I want it to be simple and quick to operate, the user never needs to worry about polarity. Additionally, I don't want to be concerned about children connecting things in reverse polarity and damaging things.Consider this. Simple Sense



FLIR TG165 - Spot Thermal Camera - with 2-Meter Drop Durability for Your Toughest Jobs. Review:


Pictures of a ceiling with a square light, one taken with a camera and the other with a FLIR TG165, show that it was better than anticipated. It is very significant to me that I did not have to refer to the user manual in order to run it. I'm one of those men who only reads directions when absolutely necessary. Simple menus make it simple to change the date and other settings. The ceiling photo demonstrates how the light was positioned and how it appears above the ceiling. A shredder in standby mode was cool to the touch everywhere, but apparently this was not the case within, as there was a place indicating high heat. The same was true of transformers, some of which were normal and others of which were very hot. For my budget, $350 is a lot, but it's definitely worth it. When I inquired about whether entry-level FLIR product was best for the application I intended to use it for—the TG165 or FLIR ONE—I received a prompt response. I can't speak for others because I haven't used any others, but I'm delighted I bought it.



FLIR ONE Gen 3 - iOS - Thermal Camera for Smart Phones - with MSX Image Enhancement Technology Review:


I had the chance to test out both the more sophisticated pro variant and this consumer-grade infrared camera. The greatest candidates for this camera are those who require a "good enough" device that can detect more subtle temperature differences like drafty windows. Contractors and anyone that require greater accuracy and detail may consider the camera's Pro model. In the movie that is included, some of these variations are visible.The limited battery life of these smartphones is my major complaint. The operating time is between 45 and an hour before it needs to be recharged. The benefit of this is that it doesn't use battery life from your phone. However, I do believe that a gadget with such a short battery life will cause frustration.The connector's ability to support huge cases is commendable, and it is controlled by a dial on the top of the device. The program is mainly plug-and-play and is straightforward enough to be quickly set up.The video attachment provides more information.



FLIR C2 - COMPACT THERMAL CAMERA Review:


I've been using this over the past weekend, and I must admit that I'm very impressed. What a fantastic and practical piece of technology for so many various applications! The Good, The Bad, and The Returnable (spoiler: there isn't one for returnable) will be discussed in detail./ The Good in Packaging



FLIR ONE Gen 3 - Android (USB-C) - Thermal Camera for Smart Phones - with MSX Image Enhancement Technology Review:


This thermal camera functions perfectly, but there are many factors to take into account before using it realistically. If you don't take the time to comprehend what this is for or how to use it correctly, your expectations will be slightly off.The device has a wonderful appearance, a lovely, compact zipped case, and good feel and finish. It seems like a product that justifies the MSRP. This would be a wonderful gift for the guy who has everything, someone who works a lot at night, and obviously home renovation and AC/insulation focused professionals. The box it shipped in was nice too.To utilize this, all you need to do is plug it into your phone's USB-C side after downloading the free app (for my USB C version). Even though the knob looks like a focus, it actually serves as an extension to accommodate the various sizes of phone cases. It barely fits on my Otterbox Commuter, but it fits well in my smaller cases. Although USB C is a terrific connection technology, it lacks the tension that older directional USBs demand. While this problem isn't the camera's fault, it makes for a little shaky encounter. My only criticism is that you should sit down and practice holding this steady because it will be difficult to understand how to use the app while fumbling with the camera. In the end, I connected the camera to it using some cheap velcro and an old case. Consider a solution like that if you're going to use this at work frequently because it made my life a little bit simpler. But if you don't want to, it takes some practice to hold it stable such that the phone's camera and this camera are both exposed and you have a free hand to use the app.Most individuals will start shooting photos of themselves, their children, and their pets and will be disappointed. This is mostly because the software can add a camera overlay, and up close they probably won't match up without some adjustment. But you don't need the overlay if you're taking close-up pictures.The overlay is quite useful for capturing photos of a building from ten feet or above. It's also quite beneficial and simple to comprehend what you're viewing when performing thermal surveillance in an area that is primarily dark, like the woods. It's crucial to keep an eye on your distance and maintain it as consistently as you can in order to find hot and cold places on a building. Being too close will cause the two photographs to be out of alignment because, obviously, the camera on your phone is far up there and this camera is down below, over by the charger. I appreciate that they didn't immediately turn off the overlay because that isn't the fault of a buggy software.The app is quite basic. There is a calibration that is unnecessary for the majority of uses (you only really need the relative hot spots). Your photographs can have varied hues if you adjust the gradient that is being used. I think that's it.The battery in my camera started to run out after roughly an hour of use. If you require a thermal camera that operates for more than 15 to 30 minutes, such as if you are conducting long-term surveillance, you should generally choose for a more expensive, specially designed camera that has a screen. Having this small sturdy case in your backpack is a better alternative and significantly less expensive if you only need to be able to look at heat for a short period of time, such as to check out a building's heat or to get a quick glimpse of your surroundings at night. Naturally, the images have already been downloaded to your phone, which is convenient if you just use this infrequently.The device charges in around 90 minutes and maintains a good charge during the two weeks that I've been using it. It is a dependable and practical tiny device after I realized its limitations, but it doesn't have a large thermal lens or produce exceptionally clear thermal photos like a tricorder or a Predator Alien. I can see footprints inside a cool house, the exact spots where there are insulation issues, and the whereabouts of nocturnal animals thanks to its clarity and sensitivity. That's fine for me, but it might not be for you.



FLIR 435-0012-03 Model FLIR ONE PRO LT iOS Pro-Grade Thermal Imaging Camera For Smartphones, 80x60 Thermal Resolution, 1440x1080 Visual Resolution, Adjustable Connector Up to 4 mm, Hard-Working App Review:


I'm a DIYer and a homeowner. I use this tool to scan the thermal information on my walls, doors, and windows. I utilize this information to help me make risk- and weatherproofing-related decisions. I have utilized this product to pinpoint the places where my weatherstripping and insulation need to be improved. Because I can see a difference in the images after I apply corrective measures to the damaged area, I am pleased with its performance. The device's limited battery life has been mentioned by several reviewers. They are right; the battery life is quite short. Having said that, I have never been unable to complete a task because of a dead battery. The battery is fine because I only use this for brief periods of time. The photographs have, at best, middling resolution. Since I don't require IR images with great quality, I'm okay with this. I'll use a different camera or my cell phone if I want high-resolution regular photographs. One item of advice: Purchase a rubber band to secure the FLIR to your cell phone. Without one, the FLIR will frequently fall off. The FLIR won't stay attached to your camera while you move around thanks to the USB-C connector.ADVICE TO THE FABRICATOR: It would be really good to include a feature that would automatically capture two images when the button is pressed on that nice device: One image depicting the temperature difference in the IR and one image in the visible spectrum. I find it very beneficial to first snap a standard photo for orientation purposes, then retake the shot in IR mode because the IR photos can be low resolution. It is frustrating to have to manually switch between the two settings. Please create a function that accepts both at once. Thanks.


Can thermal camera see through clothes?

Thermal cameras can see through clothes in certain circumstances. If the clothes are thin and do not have a tight weave, the camera will be able to see the heat emanating from the body. In most cases, however, the camera will not be able to see through thicker clothing.

Can thermal imagers see through smoke?

Yes, thermal imagers can see through smoke. The reason why is because thermal imagers measure the infrared energy that is emitted from objects. Smoke does not emit infrared energy, so it is invisible to thermal imagers.

Can thermal imaging see through walls?

Thermal imaging is a type of infrared imaging that detects thermal energy emitted from an object and creates an image based on that data. It can see through walls because it can detect heat signatures that are emitted from objects behind the wall.

Can you see fish with thermal imaging?

How accurate are thermal imagers?

Thermal imaging cameras, also called infrared cameras, detect radiation in the infrared range of the electromagnetic spectrum and produce images of that radiation. The amount of infrared radiation emitted by an object increases with temperature; therefore, thermal imagers are able to detect extremely small temperature differences. Most thermal imagers have an accuracy of +/- 2°C or +/- 2%, whichever is greater. However, state-of-the-art thermal imagers can have an accuracy of +/- 1°C or +/- 1%.

How do you avoid being detected by thermal imaging?

There are a few ways to avoid being detected by thermal imaging. One way is to wear clothing that does not absorb or reflect heat. Another way is to stay out of direct sunlight, as this can make it easier for thermal imaging to pick up your body heat. Finally, you can try to stay behind objects that will block the line of sight between you and the thermal imager.