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Why is my piCObaby, piCO or Micro+ showing a circle with 'SEN01' and a red date?
Sensor Change Overdue On piCObaby, piCO and Micro+
The device's sensor change is overdue, contact your distributor to arrange a service.
If the problem persists or has not been resolved by the information provided above, please contact Bedfont or your local distributor for more advice.