Hong KongRefoss is a smart home brand active since 2016, best known for its multi-channel energy monitors and for smart plugs, switches and garage door openers. Its energy monitors clamp onto the mains and branch circuits and expose the readings through a local web UI, an open JSON-RPC API and MQTT, so they run without any cloud account. Refoss devices integrate natively with Home Assistant, Alexa, Google Home and Apple HomeKit.
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ChinaZemismart is a Chinese smart home manufacturer known for curtain and blind motors, wall switches, sensors and energy meters built on the Tuya platform. Its catalogue spans Zigbee, Wi-Fi, Bluetooth and Matter over Thread, and the brand is popular with Home Assistant users because most of its Zigbee devices are supported by Zigbee2MQTT. Products are sold through its own store and marketplaces rather than mainstream retail.
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