Karlak UTi260A Professional 256 x 192 IR Thermal Imaging Camera Rechargeable Handheld Temperature Car Tracking Infrared Thermal Imaging Camera with 2.8 Inch LCD Screen, Real-time Image Transmission, 7

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I suspect that the refresh rate is not reaching the spec (or because it's < it's not even close to it) and there is also some lag if I move the camera but for my use it's OK. Version K is aimed towards measuing fever in people (Limited range around 30ºC but increased accuracy ±0.5ºC). UTi-260B would appear to have been replaced by the UTi-260K so the discontinued model may be available at a good price, as noted by the OP. The image quality is really very good, the resolution of 256x192 gives a much better image than the Flir one gen2 (160x120) that I also have. This does indeed work, with any good edge. How easily does depend on the replacement system being used. A Raytheon BST does a simple 'copy next' so produces horizontal lines, some tend to copy down/right, some will do an average of the good neighbours.

Thermal camera - UTI260A or UTI260B - Page 1 - EEVblog

It is difficult for a user to establish how many non functioning pixels are present on a thermal sensor FPA for the reason that you detail. All FPA’s will contain pixels that are either faulty or produce an output that falls outside of the acceptable specification. The image data from the ROIC is normally RAW and subsequent image processing stages create the Non Uniformity Correction and Flat Field Correction tables that both capture ‘out of specification’ pixels and try to correct other pixel outputs to achieve a good Flat Field output. The dead pixel map is created by the NUC ‘calibration’ process carried out at the factory. Any pixel that produces an unacceptable pixel output value is marked as ‘Dead’. The thermal imager camera is also equipped with a 5000 mAh Li-Ion battery which will ensure up to 6 hours of continuous operation. Thermal condition of different locations for comprehensive analysis, providing more information for judgement.All the thermal images that you capture will be stored on the 16GB microSD card which is provided with the camera. That is more than enough and you basically won’t have to delete any photos throughout the camera’s lifetime.

UNI-T UTi85A Thermal Camera, 80 x 60 Resolution, -10°C400°C

A fever screening camera may not be that useful for general use if it does not have wider measurement capability as well. Some cameras have general and medical modes to meet the needs of a more varied customer base.

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. The 260K seems to be targeted to fever scanning as Unix5566 mentioned, so I am hoping the price premium is mostly due to the increased sensitivity and the current demand. inch TFT LCD Screen, 7 Color Palettes, Buzzer Alarm]-- Clear LCD screen displays data, image and many kinds of interfaces clearly.

UNI-T UTi260B vs UTi690B - Page 1 - EEVblog

Third, the start time of over 20 seconds. And when changing between high and low gain (>150°C) you can wait another 20 seconds... 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.

Now that China is producing its own microbolometers, we may see a change in the production acceptance criteria for cheaper cameras, but that is not something I know about. I can't find the differences between the two, only the maximum temperature which is 400°C and 500°C

UTi260A Professional 256 x 192 IR Thermal Imager Reable

I have not found any useful information to suggest interpolation is used on the cameras microbolometer but upscaling will be needed to fit the 320 x 240 pixel LCD display. Whilst dead pixel concealment is very effective, in applications where EVERY pixel output is being analysed, such as in some science applications, it is important for the user to know which pixels are not truly active and their data should be discounted from the results. This is limited to science applications though and not really an issue with general camera use. The PC application works well but is very limited in its use and is limited to a dynamic mirroring of the camera screen. Whenever low-cost manufacturers introduce a high-end thermal camera in their portfolio, I’m always intrigued. This is the moment where they bring the fight to the big manufacturers and try to bring more to the table in terms of numbers. There’s an unwritten rule: The flagship of one company will be a better offering when compared to the mid-range of another. Why? Because the other company has their own flagship as well which costs even more and thus the mid-range can’t go that far in terms of specs because it will make the flagship redundant. It’s marketing 101. 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).It drains battery quite fast (or I've played a lot with it without noticing) but it seems to be charging when it's used while connected to USB as well (or at least battery indicator is stepping). I have seen a description of the camera that states “80x60 to 256x192” for the IR resolution. That read as interpolation or an electronic zoom function. Such is an unusual way to describe the resolution unless it meant there were several different models with differing resolution. 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? Most manufacturers of microbolometers clearly state the percentage of functional pixels expected to exist on a production FPA. This is generally 99.6% or 99.8% as I have already stated. Many microbolometers provide far more functional pixels as tests on the E4 and it’s dead pixel map image showed. The service mode on many cameras tells you how many pixels are marked as bad. The service modes can sometimes provide the option to carry out a fresh NUC process and create a new dead pixel map to correct pixels that have drifted badly or failed in use. Thankfully most FPA’s work their whole life with the original NUC table and dead pixel map created at the time of production.