Not battery powered because WiFi's chatty protocol needs to much of it. If you only care about the door when your vehicle is parked in there, Think about putting a WiFi bridge and a hub of some sort in the car. Ought to be able to last a few days. In my mind the sensor would connect when ever the car is parked. Come to think of it, if you can put an AP in the garage just run the AP in bridge mode and plug a hub into the LAN port. Done. Or if a hub with wireless can see your home router, even better.
If your VLAN works the way you want, then any Matter hub should do the job.
Get the cheapest one you can find that works with the sensors you want.
@kkossev has some links to an AliExpress hub for about US$50.
WiKi
AliExpress
AliExpress
AliExpress (GIRIER)
Amazon .de
Amazon .de
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Limit is also per year.
Thank you all!
Finally, I decided to buy Hubitat C-7. I bought it for $75 and those unnamed hubs from Ali are for $50. It's not a big difference, but Hubitat should work smoothly in Hub Mesh and it has both Zigbee and Z-Wave. Once I have everything, I'll let you know if I succeeded or not.
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