A Puck set to “Sensor Mode.” A Sensor Puck reads temperature and will send IR commands when paired with an IR device (mini splits, window ac units, portable heaters, etc.)
A Sensor Puck communicates with a Gateway Puck over the Flair network (radio signals). Sensor Pucks can be powered by AAA batteries or the Flair adapter and cable.
During Setup, a Sensor Puck that is paired with an IR device will connect briefly to WiFi to download IR codes. Otherwise, Sensor Pucks are bridged to the internet via Gateway Pucks.