507900 - radio receiver, flush-mounted, 1-gang universal dimmer

It works locally over Z-Wave, so it keeps running even if Merten shuts down the app or the servers. Nothing here ties you to a single company's survival.

• Works locally over Z-Wave — keeps running without the maker's cloud
• Still in production

Based on how this device connects (local vs. cloud), whether it’s still sold and supported, and its app / subscription. A guide, not a guarantee.