320 x 240 IR Resolution Thermal Camera, Pocket-Sized Infrared Camera with 76800 Pixels Real-Time Thermal Image, Temperature Measurement Range -4°F to 572°F, Mini IR Thermal Imager, Hti-Xintai

I am very satisfied with the HT-A2 unit that I purchased. It allows me to see relative differences in temperatures of objects via infrared light that would be hidden to me otherwise.Some example uses:1. I can see the location of fresh dog poop at night.2. I can see the slight rise in temperature of an electrical cord of a cold electric tea kettle as it heats water.3. I can tell at a glance which automobiles in my neighborhood have recently been run based on the hood temperature.4. I can take walks along dark paths on cold nights and be able to spot people in the distance.Some technical properties of the HT-A2:1. I measured the horizontal field of view to be approximately 45°.2. It can save 240 x 320 JPEG images.3. The median image size from 45 images I saved: 157 kilobytes.4. Image storage capacity: Approximately 3.22 gigabytes.5. It has no microSD slot.6. Thermal image data refresh rate feels about 10 Hz.7. It has no video recording capability.8. Has a small LED spotlight.9. Size is about 1.5 credit cards wide, 1.5 credit cards long, and about half a credit card thick.Notes:1. I haven't tested battery life much but it seems to last at least a half-hour of continuous use without indicating it goes below half capacity (I've never fully depleted it).2. I wouldn't use it for scientific measurements of absolute temperature since the sensor (a microbolometer, I believe) is uncooled.Has micro USB 2.0 female port to permit download and deletion of images.

I was a bit skeptical when I ordered this, based on the poor experience I had with the HT-102 from the same company. I have images side-by-side of the two and I am thoroughly pleased with the image quality of this product. I had rented a FLIR i7 and the image is not only better on this device, it also has a really nice option to vary the visible image overlay in multiple opacities - a feature the FLIR does not have! The battery life is not great but it charges fast, and at this price point, I still think it is a good value. I dropped one star because the charging/connecting port cover is annoyingly difficult to get open and keep open while you plug in the cable, the mediocre battery, the saved JPGs are not as useable as other imagers in this class/price range (I really hope they will develop a companion app for this - that would fix this glaring omission), and the difficulty in navigating the menus.

This is helpful while working in the HVAC trade. It can easily at a glance see the temps around the house, office building or wherever you're working. It identifies issues and very specifically helped find a super rare restriction inside a condenser coil at work. I've never seen a coil be restricted like this before, with this camera, it showed exactly where the temp drop was happening in the coil, pinpointing the restriction without needing to open the system. 10 out of 10. I'll get another if this ever wears out or breaks for sure. it has a variety of color modes so you can pick the one that works best for you.

I hardly ever write product reviews; however, I spent half a grand on a product which worked for approximately 30 days. I have communicated with the seller and tech service to try and resolve the problem to no avail. I'm a mechanic and wanted to use the A2 for diagnostic purposes. It worked perfectly until one day I booted it up and the screen froze. I was able to long press the power button until it shut down but ever since, the imager will not do anything. I have tried doing everything I was told to do by seller including contacting amazon customer service. The device is in mint condition with the original screen cover still in place and not so much as a scratch so i believe it has some sort of internal problem. All I wanted was to have the device exchanged, instead have gotten nothing except a runaround. I will be purchasing a FLIR product the next time around. I will edit this review if my problem is resolved, until then, BUYER BEWARE!!!

Although new technology is making thermal imaging more affordable, detailed macro or closeup thermal imaging is still quite expensive. A Russian YouTuber figured out an inexpensive hack to get far better closeup images. It was a bit difficult to figure out (since I don't speak Russian), so I wanted to share this here and on YouTube since it might be useful.In terms of the camera, I find it to be what I expected. The menu system could be slightly easier to use. Also, you must use the supplied cable and charger to charge it. Other USB chargers do not work. The customer service is excellent.I'm posting the how to video now and will provide a full review once I have used the camera more.

i am very satisfied with the results presented from the device, it performs very well for my specific needs, looking for poorly insulated areas of walls and ceilings, PCB/component hot spots, and general use.the battery life could be a little bit longer though and if you use the auto-shut off feature, there is no way to stop it from counting down from 5 to shut down without having to power the unit on again, pressing any buttons doesnt stop the count down, its best off not to use the auto-shutdown feature as the boot-up time is a bit long.some attached photos for reference (using only thermal imager):cat, hot coffee in a ceramic mug, missing insulation in ceiling, laptop and my hand.