Refoss Open API Wi-Fi Dual Channel Relay Switch, R21

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Description

Refoss Open API Wi-Fi Dual Channel Relay Switch, R21All Refoss Open API products support OpenClaw through Home Assistant. Dual Channel Control: Manage two devices independently with a single unit, perfect for controlling multiple home appliances or lighting circuits. Cover (Roller Shutter) Control: In addition to traditional relay functions, the R21 supports precise percentage control for cover (roller shutters), allowing you to open or close. Switch Between Product Modes: The R21 is flexible, allowing

the R21 supports precise percentage control for cover (roller shutters)

Accurate Energy Monitoring with Up to 5 Years of History: Capture detailed minute-

Seamless Smart Home Integration: Natively supports Home Assistant with no flashing required

After technical evaluation

Ideal for complex setups—monitor both individual phases and total consumption of a 3-phase heat pump

Features flame-retardant PC housing and a high-gain antenna for stable performance

Minute-Level Monitoring & Multi-Dimensional Data Views: Tracks energy consumption in real time at the minute level

MQTT & Home Assistant Ready: Supports Refoss Open API and MQTT protocols for seamless local integration with Home Assistant and other compatible smart home and energy management platforms

allowing users to switch between two-gang relay switch mode and cover (roller shutter) control mode

Contact our support team at support@refoss

Simply assist us with verification testing

Simply integrate it into your smart home platform

Exchange/Return Notes