Yes. I was selected to test as standalone but it can be connected to the Apex and used as a regular FMM. I'm not sure if it still retains the preset sensor layout. I'll find out and report back.
I had totally forget that there is a new addition the the Fusion beta we are testing called Tasks. Its essentially a wizard that guides you into setting up common scenarios.
When the FMM is connected, there will be additional tasks that will pop up. A new firmware update is required.
So how exactly are the 2 optical sensors used?
Is the lower one the normal level, and the upper one a fail-safe?
Is the lower one a warning, upper normal level, and float valve fail-safe?
If you choose to remove the float valve (not recommended), you can insert your ATO tubing through the float valve hole and use the thumbscrew to secure the tubing in place.