I have been using the new part for a few weeks. Opening and closing it is a bit tricky, but otherwise it works perfectly. However, as far as I know, continuous operation of the Shelly HT is not possible even with the power supply unit. However, the Shelly can be configured to wake up at least every 10 minutes and also if the temperature has changed by 1° or the humidity by 0.5%. If you connect the device to the Shelly Cloud, you can permanently read out the data there (e.g. via an API), see http://my.shelly.cloud .