User Guide | COMFORT SERENITY MQTT | NB-IoT / LTE-Cat-M1
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The application also allows saving, exporting, and importing an application
configuration for quick duplication onto other products.
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NOTE 1
The use of the NFC antenna has an impact on the product's battery life. To
preserve battery autonomy, it is preferable to only bring the smartphone
close to the NFC antenna of the COMFORT Serenity product when
performing a read/write operation. Once the read/write operation is
complete, remember to move the smartphone away from the NFC
antenna of the product.
NOTE 2
The sensor is protected against unauthorized external access by an NFC
security key consisting of 8 alphanumeric characters. Therefore, only
authorized individuals can modify the sensor's configuration through this
interface.
The NFC security key of the sensor can be changed by the user after the
initial connection. If the security key of a sensor is changed, the new key
must also be entered in the application settings to allow it to continue
communicating with the sensor.
