Code | Cause | Solution |
E01 | Device self-checking failed, please restart | Restart the device |
E02 | NO sensor not connected | Reinstall the sensor correctly. |
E03 | NO tests depleted | The number of remaining measurements is displayed at the top of the screen. If all measurements are used up, please replace the sensor. |
E05 | NO sensor expired | Please replace with a new sensor |
E10 | Power low, please charge | Connect the power adapter |
E11 | Try again | The sampling flow rate is too low. Try again |
E12 | Try again | Try again |
E13 | Try again | Try again |
Low charge | Power on after 30-60 minutes of charging | |
None | Abnormal shutdown or failure to turn on | Charge it for 30-60 minutes and then turn it on |