Almost any FC sensor device can be used in conjunction with the Pool Pilot provided it has a dry contact closure to activate the cell production. A dry contact closure is basically an Opened/Closed circuit switch, without any voltage being sent out.
In most cases, the FC controller will activate a 110 volt pigtail, where a chemical feed pump would be activated; or a 24 volt signal, where a solinoid would feed chemicals.
IF the controller you're interested in does not provide a dry contact, we offer a relay to make the 110 volt voltage into a dry contact.

Most of the time these are cost prohibitive for residential use and are mainly on commercial pools.
Make sure though, that the sensor being used is a GOLD TIPPED sensor, which reacts better than the standard Platinum tipped sensor in salt pool applications.

Hope this helps,