As it happens I was looking at ultrasonic cleaners recently. I found this for £73:
https://www.amazon.co.uk/dp/B07MFQ1DXW/
If you pay a bit more (£85) you get it sold by Amazon on Prime (more solid of a guarantee IMHO, so possibly worth the extra).
You are right though - that one you linked to is identical. Clearly Lyman are re-badging from the same Chinese factory.