Door sensor

Hello,

I've been shelly-ing my home thoroughly and I'm facing a problem : can I connect a door sensor (https://uk.rs-online.com/web/p/door-sen…ensors/1220719/) as a dry contact to L and SW2 ?

The difference of Volt is only 2.4 between the two, but L is connected to AC220V, so it scares me a bit...

Thanks !

P.S. My apologies if I'm not using the proper words.

Thanks !

I'll use a shelly1 and external contact addon

(for those who might wonder : https://smarthome-forum.eu/lexikon/index.…men-temp-addon/ )

Zitat

You cannot use the posted contact anyway!

Sorry but I don't understand, I've used (on a shelly1) the "external contact" parameter with the door sensor (third picture in the link) and it seems to work properly, did I made a mistake ?

Or did you mean I can't use a shelly2.5 with the addon ? (which I know, and which I find bothersome)

(my first language is french, so maybe I don't understand something)