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15 Color Palettes
Customize your experience by selecting from 15 preset color palettes or creating your own.
Adjustable Image Settings
Fine-tune image settings for sharpness, contrast, brightness, and color distribution to achieve optimal imaging.
Accurate temperature reading
The Finder S1 offers the ability to detect temperature changes of 0.04℃, with temperature readings discrepancy within max(±3.6℉, ±2%). Additionally, the camera is equipped with emissivity parameters for common objects. By selecting the appropriate emissivity and distance-to-spot, you can obtain highly accurate measurement data.
Spots/Lines/Areas Temp. Rules
You can set temperature rules for Spots, Lines, and Areas. The device will automatically track the temperature and instantly display the readings. This allows you to quickly identify anomalies with just a glance.
High/Low Temperature Alarms
Set high/low temperature alarms to promptly receive notifications of anomalies through visual OSD text, audio alerts, and vibration alerts. This allows you to take action before significant failures occur.
Custom Level & Span
Optimize the image by manually adjusting and locking the Level (brightness) and Span (contrast) to meet the specific requirements of the scene. Highlight the temperature range you want to focus on while filtering out undesired temperatures like the sky and fire. This creates highly detailed images, making it an ideal tool for building inspections, electrical inspections, and HVAC maintenance.
No Battery Design
No charging is required before use. Low consumption of 0.31W, lab tests show it can run on Android devices for 6-8 hours.
Inspect with Flexibility
No need to remove your phone case to connect. The package includes a USB-C extension adapter that is compatible with phones, even if they have a thick Otterbox case.
T & A
Reviewed in the United States on March 31, 2025
First unit of this type that I have used but simple to set up (install app and 'just works'). Functions as I thought it would showing hot areas. I don't really need it for temperature accuracy, more of need it to ballpark extreme differences (breaks in insulation, etc.) Has a few options in the app to tweak the behavior. Only gripe is the re-calibration it does by default every few seconds which is extremely annoying until turned off - should be off by default but mention it if feature needed. Have had no other problems with the device as of yet.
Kreader
Reviewed in the United States on March 19, 2025
When I first plugged this in I was excited to see the contrasts between the warmer objects and the cooler parts of the house. I had my oven and stove on, and they showed up great. My daughter had fun looking at our dogs using it, and seeing them show up as "hot." But then I turned the camera toward my computer chair, which was unoccupied all day and should not have registered any differently than the desk behind it. Yet it showed as being one of the warmest objects in the room. I tried different distances, different angles, but nothing changed. I just thought to myself, if a chair could trigger a false reading, what else could? And if I am relying on this to identify spots in my house that may need insulation, will I be wasting time and money? It is an expensive novelty, but I cannot give it more credit than that.
Prime Member
Reviewed in the United States on March 17, 2025
This S1 Thermal Camera works well!It was easy to get it working on my Android phone. Just download the HSFtools app and add the camera as a sensor. From thereon it is pretty intuitive.As you can see in the photo, it even detects my body head as reflected by my stainless steel fridge. It also accurately depicted the temperature differences when I opened the fridge.It comes with a protective carrying case and a small USB extension plug. This is useful because if you have a case around your phone, the camera won't stay in.And just because I'm stubborn I tried it on iPhone; that didn't work, as expected because this is advertised as for Android.All in all a proper working product!
Customer Review
Reviewed in the United States on April 9, 2025
In terms of setting it up, it was easy enough to plug in with the USB C port; however, it does need to have a weird third party loaded app running in order to use the device, so keep that in mind if you do not want random software. The resolution and consistency do feel somewhat restrictive in the amount of detail that is present. It does not feel like a worthwhile tool for functional use but rather an expensive toy.
Jay Stone
Reviewed in the United States on April 8, 2025
This Finder S1 Thermal Camera for Android,96x96 IR Resolution Thermal Imaging Camera with Live Super Resolution,Thermal Imager for Android Phones and Tablets,Carrying Case,USB-C(not for iPhone) is ok.This is OK Thermal Camera for Android. This is only a 96x96 IR Resolution Thermal Imaging Camera. This is a type c. This is only the S1. This is a nice toy or cheap thermal camera. This does not get the heat correctly. Some things it shows heat were there is none at all. The app is really bad. I did find it in the play store. I'm better off getting a all in. one unit.
High Quality
Reviewed in the United States on April 7, 2025
UPDATE: Added back one star as HSFTOOLS has actually been very responsive after the initial review (preserved below) and has both mentioned the ability to disable auto-calibration (would still be nice if it were just faster) if you need to use the device without disruption for a while, and has also stated they are looking into smaller, better-fitting cases.This works decently and will get the job done, however, the 96x96 low resolution makes it harder to find and recognize the parts you are looking at. For ~$50 more you can find thermal cameras with much higher resolution. It is also annoying how frequently it stops to recalibrate, and how long the recalibration takes. The zipper case, while nice, is ridiculously oversized as well.
frzbgolfer
Reviewed in the United States on April 17, 2025
The Finder S1 Thermal Camera for Android is an impressive, budget-friendly tool that transforms your phone into a powerful thermal imaging device. Its compact, lightweight design (just 0.92oz) makes it incredibly portable, and the included carrying case ensures it’s protected during travel or fieldwork. Setup is a breeze—just plug it into your Android device’s USB-C port and the intuitive HSFTools app launches automatically, providing instant access to live thermal imaging. Despite its affordable price, the Finder S1 delivers clear and detailed thermal images thanks to its Live Super Resolution technology, which enhances the native 96x96 IR resolution up to 720x720 for easy identification of temperature anomalies. The camera is battery-free, drawing minimal power from your phone, so there’s no need to worry about charging it separately. With a wide temperature range of -4°F to 752°F and a sensitivity of 0.04°C, it’s ideal for spotting insulation gaps, electrical hotspots, or plumbing leaks around the house. The ability to adjust emissivity and distance settings further improves measurement accuracy across different materials, making it versatile for various inspection tasks.What really stands out is the user-friendly app, which offers 15 customizable color palettes, temperature alarms, and the ability to track and display hot and cold spots, lines, or areas directly on the screen. The Finder S1 is perfect for homeowners, DIYers, and even semi-professional users who want to uncover hidden problems like drafts, water leaks, or inefficient insulation without breaking the bank. While its resolution is lower than high-end models like the FLIR ONE Pro or Finder S2, the enhanced imaging and practical features make it more than sufficient for most home and light professional applications. The lack of iPhone compatibility and the need to rely on your phone’s battery are minor drawbacks, but these are easily outweighed by the camera’s affordability, ease of use, and reliability. Overall, the Finder S1 is a fantastic investment for anyone looking to quickly and accurately diagnose thermal issues, save on energy costs, or simply explore the world in a whole new way through thermal vision. Highly recommended!
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