Hi
I have 7 radiator thermostats E1 each using an external sensor and it works well. but I wonder if they can automatically switch to using the internal sensor if the connection to the external one is broken.
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Hello, welcome to the forum.
Interesting question, tomorrow I will pull the battery out of the square sensor and tell you. You can also do this research 
Hello @carl_dragert
I don’t think it will automatically switch if an external sensor is selected, but it’s worth checking, thanks for the interesting question 
I have now tested this. I disconnected the connection between the sensor and the thermostat for three hours. The thermostat temperature did not change during this period, while the sensor temperature dropped three degrees Celsius.
If this happens in the future, and it is due to problems with the sensor, it can be registered with a flow which then sets the thermostat with a fixed temperature or from another sensor. But if it is the hub that is failing, it is probably bad luck, or does anyone have a solution.
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Hi, I also checked this issue. Everything works, the user gets a warning. The sensor was turned off for ~6 hours.
Control has shifted to internal measurements.
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Did the thermostat switch to internal sensor after 6 hours, or did it happen before the 6 hours had passed?
I clarify, I went into the E1 schedule where I saw the switch to the internal thermometer. 21.00-22.14. Conclusion, after determining the temperature sensor as offline (by the Aqara application) E1 switches to the internal sensor. Sorry for the inaccuracy of ~6 hours, I got up early and did not research the exact time, so I put ~.
