Review on 📷 Noyafa Industrial Thermal Imaging Device with 1024 Pixels Resolution, GB Memory Card Thermal Imaging and Infrared Thermometer with 2.4 TFT LCD Display by Ryan Gillett

I bought this elsewhere and it's fine. I knew what I was buying but the pictures are deceiving. Most of them were stolen from FLIR with a higher resolution. So low stars are there to deceive and mislead people. The screen refresh rate is a far cry from 9Hz. That's around 2Hz for thermal mode only, or around 1Hz for combined thermal + visible modes. Human body temperature is accurately measured with a standard emissivity of 0.95. I bought it to see hot spots on circuit boards. For that it works fine. If you can't narrow down the position due to the low resolution, try using a piece of paper and cut a small hole in it. Use the paper as a mask and move the hole bit by bit and then check the temperature. The paper masks the heat from the surrounding components. It has both an optical camera and a low-resolution 32x32 thermal camera. But the combined modes are almost useless because the images never align properly. The camera will also slow down when using the optical camera fusion mode. If you save images, the merged image is never saved. It stores a thermal image and then an optical image. It will then forget your settings and revert back to just thermal imaging after taking the picture. I'll admit, even if two photos don't match, it comes in handy because when you upload all your pics, you often forget what you've done. Photo. So the visible image helps you remember what low-resolution heat spots are, even if the images don't match exactly. You may ONLY USE the Celsius scale. There is a firmware bug when you switch the camera to Fahrenheit and take a picture. After that, the temperature is millions of degrees and the image is saved with the wrong temperature. When received, it is set to Chinese. You need to use the user manual to blindly change it to English. Some pictures on the web show this on a tripod, but that's fake Photoshop. No tripod connection! Good 3 color scales: Red Hot, Iridescent and Grayscale. The only downside is that you can't lock the scale. It's always changing for you. Therefore the scale is relative and cannot be used as an absolute heatmap. If you happen to see part of the cold night sky in the image (-40C in my opinion), it instantly zooms in and you lose accuracy when measuring things outside, like around your roof. If you could lock or install the scale that would be much more useful. It comes with a genuine Sandisk 16GB MicroSD card and a cheap nylon zip case. It turns on very quickly, unlike my FLIR at work. There is no shutter or protective cover for the cameras, so be careful not to point the camera at the sun and get it dirty. The LCD display is clear and easy to read and contains a lot of useful information - minimum, maximum and average temperature (you can turn the crosshairs on or off). However, there is no information to decode the dependence of intensity on temperature. Even when you are viewing live images, the minimum and maximum pixels are displayed on the screen. But the pixel markers aren't saved in the heatmap, which is probably a good thing since it looks cluttered with MIN/MAX values floating around the screen. Buttons and trigger are ok, not too cheap. No cover for USB port or microSD card.