Service Must Be Performed On NObreath Device
This symbol means that the service date has exceeded 395 days. This will be displayed every day until the device has been reset by performing a calibration or by changing the sensor. To change the sensor, you should consider our Sensor Exchange Request, read more about that here.
If a service is not due, this could be because the time or date may have been changed to a date in the past. To correct this, change the date or time to the current date or time.
If the problem persists or has not been resolved by the information provided above, please contact your local distributor for more advice. Find out who your local distributor is from our website here.