Hi lars,
Thanks for your reply.
I'm not sure what kind of wifi they use, but yes it looks like proprietary @ 433Mhz which the sensors use to link up with their gateway. The gateway has an Ethernet port which receives the data from the sensors over wifi, and send onto the cloud using wired LAN. The gateway also does a multicast of the data it receives from the sensors, this is where 3rd party products can easily interface. I would be happy to share my code to get you started with this, nothing would make me more glad than to see the readings running on an Almond+ in my home. I missed out on the KS backing, but look forward to order one as soon as a pre-order is available.
Meanwhile, I also invite you to try my add on code, you just need to send an email to and ID I can share with you in private, with subject "fetch report". I believe in sharing ideas!