Oh, I have the remote BBQ thermometer on my bed stand for flue and furnace temp. Also, my smart phone is handy if I feel the need to see the draft measurement, DHW and warm air supply temps and if a thermostat call is in progress via the IP cam
Other than that, I put the Bluetooth speaker and sub woofer in the basement when I took the gazebo down for winter so I can cue up some Rush while I have a beer and shake the furnace lol