Signals on the smoke sensor

  • Updated

There are several different signals on the smoke sensors. The most common are flashing lights on the ring around the button, but can also be combined with sound signals.

Red light


Short flash: Sending signal. This means that it sends a message to the central. This is completely normal and will happen several times a day.

Short flash with beep: The sensor is calibrating. Rapid flash: Alarm signal.

red1.gif Flashes every second: Silent alarm.

red2.gif Flashes every 2 seconds: During warm-up and calibration.

Yellow light

yellow1.gif Flashes every second: Calibration failed.

yellow5.gif Flashes every 5 seconds: Self-diagnosis failed.

yellow45.gif Flashes and beeps every 45 seconds: Low battery.

Orange light


Flashes every 4 seconds: Critical low battery, replace immediately.

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