I would like to know if you could implement an alarm function that gets triggered by items. I think it´s annoying to use a third party app just to get an info on your device when some sensor triggers. It should not be that complicated to add an alarm function I think.
Put a rule in your rules folder, f.e. message.rules
rule "send message"
when
Item <your_item_name> received update OPEN
then
sendNotification("your my.openHAB user email here", "your text here")
end
Make sure your sensor sends OPEN command and not ON or something else, otherwise it won’t work.
(For testing you could use
Item <your_item_name> received update
then you will get messages when the sensor changes to OPEN or CLOSED)