HT-201

Build quality: Excellent, the outer case is metal not plastic and overall this camera has a more premium look and feel than most others of the same type. The male USB-C plug is a bit longer than normal, this is intended for plugging into a phone or tablet without removing the protective case of your device. It draws power from USB-C so there is no internal battery.I was initially concerned by a frequent "clicking" sound coming from the device, but I later learned this is normal as the shutter must keep compensating for temperature ranges as you move the camera.Image quality: Native resolution is 320x240 which is high for a thermal camera especially at this price point. And it does not disappoint, the images are very high quality. Update rate is 9Hz which is standard for this type of device. It is able to detectUsability & software: Device support is good, you can use it on a Windows laptop, Android tablet or Android phone. Sorry Apple owners IOS does not allow third party devices like this to work. The "Hti-Xintai" app is fairly basic but works well enough, it contains the most common functions such as min/max markers, a center marker, auto-adjusting gradient and a choice of different color palettes. However like a few other reviewers noted there is a better free app available called "Seek Thermal". That app seems to be made for a competitor device but I can confirm it does work with the HT-201 and has more features. I keep both apps installed as each one can do a few extra things the other cannot.Value: This is by far the highest resolution thermal camera you can get for the price. The market is small and choice quite limited, all I can say is you will not be disappointed. 5/5

Using with a Pixel 4a (5G) it was trivial to get going, and solved the immediate equipment overheating issue I was facing. Looking forward to having this in the toolbox for future projects.Small niggle is the onscreen temperature reading renders in black text, which is no use on a black background. Tip to workaround this is put the palette into "Black Hot" mode (so most the screen is white) and then it's fairly easy to read.The temperature readings look tolerably accurate, certainly enough to get relative scale of temps.

I've done a lot with thermal imagers over the years compared to most. I've used one for an art installation at EMFcamp, I've learned about them professionally, and I've seen the FlirOne in action as well as several others. So I bought this one, crossing my fingers as despite the good spec and relatively low cost, it has mixed reviews. Fortunately, it is amazingly good. Not just for the money, it is amazingly good by any standard.The images attached show hot and cold drinks and the thermal footprints they leave behind, and the other image shows literal thermal footprints, as well as a pipe duct under the floor.Top tip: forget the "supplied" software, download Seek Thermal, & use that instead. The poor software cost them the 5th star. Seek's software works brilliantly.

Nothing to add, as advertised, not a single problem with app.