Accuracy in comparison
The Xinfrared XTHERM II T2S Plus is quite suitable for semi-professional use, as long as you are aware of the importance of the right presets. You end up coming within 1 to 2 degrees of a professional camera, but you need some sort of calibration list that you create once. Since it is also possible to set temperature differences in the camera, you can create an adjustment for the relevant temperature ranges in 10-degree steps using a calibrated device. If you then know that the temperature is between 90 and 100 °C, you use the corresponding correction value. The manufacturer specifies a deviation of +/- 2 percent, which is quite accurate. However, at 100 °C this would already be a tolerance window of 4 degrees in total.
Of course, this is only one (important) facet, because the emissivities are where most things go wrong. Here you MUST do really exact procedures, otherwise you measure crap. Also, things like measuring at an acute angle must be avoided at all costs, and mirroring, i.e. the radiation of hot surfaces onto the actual measuring point, must be taken into account. It is better to mask such surfaces for a short time. Otherwise, this small camera can be certified as having quite useful results, which are on the level of normal K-temperature sensors, but are not so temperature-dependent.
Expandability
If you already have a gimbal, you’re fine. It really is enormously helpful to provide the combination of heavy smartphone and T2S Plus with a good mount. Of course, there are accessories for this and, in addition to the solid mount for smartphone and camera, you also get a suitable adapter cable so that the IR camera can be clamped externally in the mount.
When screwed together, it looks like this in my hand, and trust me: it works better than most so-called handheld cameras in the under 500 euro segment and is much more flexible, especially with the app (which still has potential).
And if you also want to microscope circuit boards, for example, you can get the matching stand as an option, whose assembly and setup works about the same, since the camera has to be mounted separately here as well:
Summary and conclusion
The just under 340 euros for the iPhone or Android variant is fine if you need more than just a fun and colorful hotspot indicator. But you have to consider two things: The more functions such a part offers, the more the user is also challenged in the theory of thermography. And this infrared camera cannot replace a real laboratory measurement, but it can approximate it quite well. If you really want to get reliable values, you can’t avoid a one-time calibration with an accurate device. Otherwise, you are well within the specified tolerance range.
However, all this is still worlds better than what is already permanently installed in smartphones today. The whole story lies somewhere between a toy and lab equipment, which more than justifies the price. I would like to give one more tip along the way: Only touch it briefly and never carry it in your pocket. For useful measurements, the camera should always be at room temperature! Then it will also work with this product!
Back-Friday-Offer with 20 % off: 257 instead of 339 Euro
(use the 20% Black-Friday discount plus the discount code igorslab5 in the order for a further discount)
And if someone has now tasted blood and wants to deal with the basics in more detail, I still have the ultimate link:
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