The DigiStat antenna is for a remote wall-mounted thermostat that can control the Amana brand DigiSmart PTAC from anywhere in the room. It is powered by 2 AAA batteries that are included in the kit.

The DigiStat communicates on a two-way RF encrypted signal. Settings can be changed either at the DigiStat or on the PTAC at the DigiStat touch-pad. Settings are automatically relayed to the other device within moments.