As no one else has offered comment, I will share my thoughts on the camera but please note that I am using research as a basis for comment and not hands on use of this specific camera.
Initial thoughts on the design…….
1. The image that it produces appears to contain higher than expected levels of noise.
2. The camera produces sub 9fps image refresh which is now unusual if an Asian core is in use.
3. The lens is fixed focus so a compromise that works OK but manual focus produces better image sharpness in many cases.
4. I looked at the manual and could not find manual span and centre temperature as an option. I did find Isothermal boundary settings, but that was all.
5. The resolution is good at 320 x 240 pixels but that resolution is somewhat squandered by a wide field of view lens (56 degrees). A pity as a smaller field of view would benefit your intended use scenarios. The IFOV suffers as a result of this lens chouce.
6. Do not get fixated on thermal sensitivity figures. They can be very misleading and 65mK is more than respectable for a microbolometer based camera.
I studied the images of the UTI-730E and made an ugly discovery. I was already suspicious of the noisy images shown in the user manual….. they looked familiar to me. I then saw the detail of the thermal cores lens adjustment ring. I immediately recognised this as the focus ring (for factory setup) of a Seek Thermal Mosaic 320 core. Sure enough the Seek Thermal 320 offers a 56 degree FOV lens.
I will be careful what I say as everyone will have their own opinion of Seek Thermal cores and their performance. All I will say is that, in my experience, I have found the SeeK Thermal cores to produce higher than market average levels of noise at low temperature spans. The cores coming out of Asia from companies such as IRAY Infiray and Guide Sensmart offer higher frame rates and, in my opinion, lower noise imagery. Now noise is to be expected at small temperature spans, but the Seek Thermal cores appear to be showing their age. Seek Thermal realise this and have released an updated noise processing algorithm for their Mosaic cores to reduce visible noise. The images in the UTI-730E look like those produced by a standard Mosaic 320 Core based product. I personally would not buy an expensive camera that is based on that core.
You need to do your own research to decide whether a Seek Mosaic 320-56 core based camera will meet your needs, especially with low Delta T Scenes. High Delta T scenes cause the camera to select a wider temperature span and the imagery is normally much cleaner and free from significant noise.
I attach some pictures of the Mosaic core focus ring.
Mosaic datasheet…..
https://www.thermal.com/uploads/1/0/1/3/101388544/mosaic_core_engineering_datasheet_165_rev13.pdf