A particular brand is not required: affordable CC2652P USB sticks and other adapters from the Zigbee2MQTT list work well with GrowerHub. SONOFF remains a common branded option.
You do not need an expensive branded kit to get started. Choose an option that suits your budget and make sure the listing says Zigbee rather than Wi-Fi or Bluetooth. Search links are neutral, have no affiliate tags, and availability varies by country and seller.
Each card distinguishes equipment used in the GrowerHub installation from models recommended through official Zigbee2MQTT compatibility. A successful check is not a blanket guarantee for every white-label revision of a model.
Operational snapshot and methodology
A practical and affordable CC2652P option for Zigbee2MQTT. Similar sticks are available from many sellers.
Common coordinator on CC2652P. Suitable for those who prefer a device from a well-known brand.
Current coordinator at Silicon Labs for those who choose the SONOFF line.
Connect a coordinator and one Zigbee sensor first. You can add more devices later.