Custom temperature sensor for Thermostat

Yeah, you don’t need the switch itself to be on the wall. My system looks like this:

where I have a simple sensor on the wall using the old thermostat wiring for power.

  • Good position for a room sensor
  • Good position for a display
  • Saves filling up the hole left by the old thermostat
  • Future-proof in case we move and need to revert to a “normal” system

but you could equally use any temperature sensor.

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