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CO Guard

CO Guard is free for everyone. It works with heaters that have a carbon monoxide (CO) sensor, and with the CO fault some heaters report.

  • When your heater has a sensor, the Heater tab shows its CO reading.
  • Set the warning and alarm levels in Settings. The defaults are 50 ppm and 100 ppm. The heater's own CO fault always raises the alarm.
  • Stop the heater on a CO alarm (on by default): the app stops the heater when the alarm goes off.
  • While the alarm is on, the app won't start the heater.

Same help as in the app (More → How to use).