In case of a loss of connection it is a good idea to secure the remote control devices. It is also good if you have a possibility to find out if something happened to your device. For this purpose there is a Heartbeat function. You can choose a command in configuration which will be sent automatically in a set interval. It is even possible to set the answer check or message which appears after the time limit for answer is up. The answer is the same as the command you send.
It is a good idea to check if the Heartbeat function on your device did not stop and if it did, stop the device or turn it off.
Sending can be turned on or off by using a Heart icon in the Menu of the application. If the Heartbeat is active you can see a small heart icon above the Menu button.