Pressure Sensor [Mybrewbot Accessories]
1/8NPT Stainless Steel Pressure Transducer Sender. Comes complete with pre-soldered jack plug and 3m cable to route to your controller. Just replace the analog sensor on your spunding valve with the transducer. You may need an adaptor depending on your setup. Available from good hardware stores. The pressure sensor connects directly to the pink jack socket on the controller.
Only one pressure sensor can be used per controller. If you need two pressure sensors then this can be accomplished with a MyBrewBuddy extension.