(2.1 MB)
The device works well. At first sight, it achieves the advertised resolution and accuracy.
The field of view is wide enough so as to allow many applications including PCB inspection, checking your house isolation (indoor and outdoor), checking your car (engine/brakes), checking electrical devices (freezer, TV, ...), and so on. The wide field of view is not optimal for wild life observation since it results in a panoramic view instead of a zoomed-in view.
The biggest problem with the T2S+ is the "xtherm infrared" app: currently it cannot be found on the play store, so it needs to be side loaded.
To side load the app: look for "apk infiray t2s+" on the internet, download the apk on the phone, and use an apk-installer to install it.
Note: side loading + installing the app requires some expertise and patience, is less secure, prevent automatic app updates, and is a bit frustrating. But in the end it works.
The positive thing about InfiRay and the T2S+ is that they support open source solutions, so there exist for example a python script to use the T2S+ on Linux (for Windows, InfiRay provides software, but I guess that python script would also work).
Resources I used:
https://dmytroengineering.com/content/projects/t2s-plus-thermal-camera-hacking
https://apkcombo.app/xtherm/com.infiRay.Xtherm/
Thermal Master T2S Pro thermal camera for Android
Details
The Thermal Master T2S Pro is a professional macro thermal camera that transforms your Android smartphone into a high-precision temperature measurement tool. With a 256 × 192 IR resolution and a frame rate of 25Hz, it delivers sharp thermal images with excellent responsiveness. Its standout feature is the 8mm adjustable macro lens (“Smart Spin”) that allows manual focus for extreme close-up inspections — making it ideal for detecting tiny components such as 0.25mm resistors.
The camera operates in a wide temperature range of -20 to 450°C with an accuracy of ±2°C or ±2% and a NETD of ≤40mK. It’s suited for various applications, including detailed PCB analysis, HVAC troubleshooting, electrical system diagnostics, and structural inspections. Features include customizable measurement ranges, dual-range view modes, digital zoom (up to 15×), and support for picture-in-picture and fusion modes for advanced thermal visualization.
This version includes a USB-C connection for Android smartphones. There is also an iOS version with a Lightning connection.
Specifications
| Temperature range | -20 to 450 ℃ |
| Accuracy | ±2 ℃ or ±2% (whichever is greater) |
| IR resolution | 256 x 192 (49152 pixels) |
| NETD | ≤40mK @25 ℃ |
| Frame rate | 25 Hz |
| FOV | 44.9° x 33.4° |
| Lens | 8 mm adjustable macro (manual focus) |
| Zoom | 15× digital zoom |
| Display | External (smartphone screen) |
| Colour palettes | White/black-hot + 5 pseudo colors |
| Connection | USB-C |
| Dimensions | 26 x 32 x 23 mm |
| Weight | 19.5 g |
Accessories
The Thermal Master T2S Pro for Android comes with:
- Type-C male to female extension USB cable
- Tactical pistol grip handle with smartphone mount
Pros and cons
- Compact and lightweight
- Built-in macro lens
- Frequent software-updates
- Not ideal for outdoor (>5m) use
Downloads
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