RadioLink SUI04 Pixhawk 2.4.8 I2C splitter

Hello all! Has anyone tried these cheap RadioLink SUI04 ultrasonic modules with a Pixhawk 2.4.8?
How can they be I2C and UART? I am finding very little REAL information on them. They make you think you can have multiple on an I2C splitter board but I believe this only applies to the MINI as it has I2C and UART?
So I am placing one on the telemetry port and only one on the I2C port. I can not make them work on a splitter board.

only works on a radiolink pixhawk. and no recommendation poorly soldered compenente falls off the sonar board

I have it working on a non radiolink pixhawk. They are horrible 1 out of 4 will work. Thankfully I have soldering skills and was able to piece together two of them. Garbage. I guess they do not test them before shipping.

Does it only support RadioLink FC?