The SupervisAire® microprocessor-based monitor-controller works with the Dry-O-Tron heat recovering indoor swimming pool dehumidifier. It is available on larger models in DS, RS, DB, RB, DA-5, and RA-5 Series units, and it interfaces with building automation protocols such as BACnet™, Modbus™, and LonWorks®. The unit has four analog outputs and proportional response features. The 2-1/4- by 12-1/2- by 4-inch monitor-controller can be custom programmed.