Alternative to RFXCOM 433mHz receiver

[curlyel]

Since you seem to need receive only, you may consider rtl_433, see:

Tutorial - rtl_433 brings 433MHz sensors to openHAB

The maintainers of rtl_433 are doing a great job and I received excellent support recently which helps simplifying the integration of 433MHz sensors into openHAB. One of my recent feature requests just needed a few minutes to get picked-up and implemented. Amazing! To give something back to them, I just published a HowTo how I did the integration with openHAB on their Wiki to help others. I’d like to share the link here too since I assume that some members are still wanting to integrate 433MH…