Honeywell Sensepoint XRL Instruction Manual page 28

Commissioning
28
Inhibited: The indicator is on steady yellow when the user has
placed the detector into the inhibit state for maintenance or repair.
Alarm: The indicator flashes red when the gas concentration is
beyond the alarm-level threshold.
Out-of-range alarm: The indicator rapidly flashes red when the
gas concentration is beyond the full scale deflection of the detector.
Bluetooth pairing: The indicator flashes blue when Bluetooth
pairing between the gas detector and an Android device is in
progress.
Bluetooth connected: The indicator is on steady blue when a
Bluetooth connection is established and the detector is in a normal
condition.