Hey!
i bought the following 433mhz door sensors from our beloved china-marketplace aliexpress: https://www.aliexpress.com/snapshot/8397364436.html?orderId=80021174314980&productId=32657757322
Unfortunately it just sends the signal, when opened (distance between the 2 pieces larger than approx. 1cm), but not, when closed again.
Since i’m planning to use this to shut down the heater, when a window opens it would be nice to have a “close” signal as well. I know, that it’s possible to just set a timer to 10 minutes or sth. like that - but then you forget about the window and it’ll get warm outside 
Anyone with a suggestion? Best case: Tested working with pimatic 
Greetings, Chris
