Tomlov is the same (re)brand these 30 to 50-dollar screen-with-scopecam units.
like DM5 & DM9
Your 4K unit there with your stand is around 190$ on their Aliexpress store + VAT so hopefully nobody is taking the plunge on their mocked-up site-prices, as some of these models are double the price, versus what they cost on Aliexpress
https://www.aliexpress.com/w/wholesale-tomlov.html?but for hobbyists, its often a better fit than fx Tagarno which is quite an expensive Danish product, that seems to emphasize on being made regionally in Denmark which makes things quite expensive, and they seem more optimized for industry clientele.
https://tagarno.com/about/so kudos for digging down into Aliexpress alternatives, and how well it performs, as some of these el-cheapo ones from China can be useful, as long as you take their specs with a pinch of salt..
- tons of rebranding
https://www.aliexpress.com/item/1005007439409707.html?Got one of those, convenient form factor..
One thing with these Chinese microscopes' is the resolution claims, which often ain't refering to the sensor, but an upscaled output from a lower resolution.
fx 720p or 1080p that are upscaled on the fly to 4k picture & video-labels.
Fx this 4K microscope here from numerous years back for OLED-info... Analyzing different OLED panels and behavior.... it will claim 4K, but in practice, it's a 720p sensor (if I recall correctly) even though it upscales to 4K.