Who is going to contact FeelTech about the power issue?
...
Who is going to port the software program of the MHS-5200 to the FeelTech FY3224S?
At the price point of this FG (mine was $69.99 including shipping on bangood.com), I highly doubt FeelTech is likely to address either issue. No where do they claim the product is safety certified by any US or european safety standards lab. This is surprising honest, as plenty Chinese products are stamped with false or intentionally misleading CE/UL logos when said-equipent would never meet said-safetly-standard if actually tested.
I just don't see a motivation to compete in the "sub-$100, safety certified, function generator market". This stuff is targeted towards one-man shops in the Pac-Rim countries, and hobbyists in the US and Europe. Real electronics laboratories will buy real Siglent, Rigol, Agilent, BK-Precision, branded, safety certified FGs, and pay well over $400 for them.
I'm not trying to discourage anyone from raising up the issue to the manufacturer, but speaking for me... I stand a better chance of being shocked that FeelTech responded to our INVESTIGATION of ghost voltage on the BNC connectors, than being LITTERALLY shocked by an ACTUAL FAULT in the function generator power supply AC coupling caps.
Just for fun I might go test some other stuff I have in my house with two-conductor power cords looking for AC ghost voltages... I wonder what my Blu-Ray player does...