It probably won't see much scientific usage so should there be any pixel errors it's not my concern (the display has none, and sensor pixel fault is hard to detect as probably similar interpolating algorithms are used as with photography cameras so I don't know if it has one). It is not that easy to discover the dead pixel count without entering the cameras engineering modes or accessing the dead pixel map. A dead pixel map often exists as an image file containing all the pixels present on the FPA but highlighting those that are market based. The image processing stages read the dead pixel locations out of the image file. Gaining access to the dead pixel map is not a simple task on many cameras unless access can be gained to the operating system and configuration files. It is not easy to find out except to ask UNI-T what the physical resolution of the microbolometer is. Manufacturers sometime obscure that information deliberately.

UNI-T UTi260B vs UTi690B - Page 1 - EEVblog

I can't say much about accuracy as I don't have anything similar to compare but it agrees with my other measurement methods (temperature probe of DMM included as well). EDIT: The more I look at the options, the more this one looks like a no-brainer. What am I missing? Would a Seek or HTi phone module be a better option? Now let’s look at what matters, image quality. The thermal sensor can produce an infrared resolution of of 256 x 192 pixels totaling 49,152 thermal pixels. This 256×192 IR resolution is really good because it is 50% more than what you get from the average thermal camera at this price level. You just won’t get that many pixels from a handheld Flir camera for this price.The UNI-T UTi260B is a thermal camera which offers great value for money with a high thermal resolution, 25 FPS refresh rate, wide temperature range and IP65 rating. Then there is the temperature range and things look fantastic here since the sensor can measure any temperature between -5 F to 1022 F (-15 C to 550 C), a range which is about 30% wider than what you would expect from other thermal cameras in this price range. Its thermal accuracy is on par with what’s expected out of thermal sensors these days, +/- 2 C.

UTi260A Professional 256 x 192 IR Thermal Imager Reable

Reliable Quality, IP65 Rating]-- Made of high quality material and is ergonomically designed, with wear resistant and durable shell, anti-slip handle, comfortable operating buttons and tripod mounting hole in the bottom. And with IP65 protection grade and 2m drop resistant, it's more convenient to use for various applications.i tend to buy this model too, atm i use the Seek Thermal Compact with the Hti Xintai Apps for more Options inch TFT LCD Screen, 7 Color Palettes, Buzzer Alarm]-- Clear LCD screen displays data, image and many kinds of interfaces clearly. Note: Size and color may be slightly different due to manual measurement and different light conditions. Thank you for understanding. It may be possible to detect pixels that are bing disguised by image processing by sweeping a thin IR source wire across the FOV and analysing the image output for deformations in the imaged line. Not something I have ever done and a purely theoretical process. There is normally no need to analyse the dead pixel content of an FPA unless an issue arises in the cameras correction process or damage is suspected, such as laser induced pixel distortion etc.