ZM5202AE-CME3R Silicon Labs | RF and Wireless | DigiKey
Z-Wave 500 Series Modules - Silicon Labs
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Amazon.com: Z-Wave.Me RaZberry 7 Pro - Z-Wave Plug-On Module for Raspberry Pi (US Frequency), Great for DIY Smart Home. Compatible with Z-Way and Home Assistant Black : Electronics
ZWAVE.ME - RaZberry 7 Pro Extansion board Z-Wave+ 700 for Raspberry Pi (with external antenna)