SONOFF Dual Relay Two Way Power Metering Smart Switch – DUALR3

The SONOFF DUALR3 Smart Wi-Fi Dual Relay Switch is an advanced in-wall smart module designed for versatile home automation. It allows independent control of two separate electrical loads or operation of a single motorized curtain, blind, or roller shutter system. With multiple working modes—Switch Mode, Motor Mode, and Meter Mode—it adapts to various residential and commercial applications. In Switch Mode, the DUALR3 controls two lights or appliances independently, each supporting up to 16A total capacity. In Motor Mode, it is specifically designed for bidirectional AC motors such as roller shutters and curtains, offering precise 0–100% position control for customized lighting and privacy. The device also supports dry contact functionality, expanding compatibility with additional systems. One of its standout features is real-time power monitoring. It measures voltage, current, and power consumption, allowing users to track energy usage and optimize efficiency through the eWeLink application. The DUALR3 connects directly to a 2.4GHz Wi-Fi network without requiring a hub. Through the eWeLink app, users can control devices remotely, create schedules, set timers, and design automation scenes such as sunrise/sunset routines or customized environments like “Movie Mode.” It also integrates seamlessly with Amazon Alexa, Google Assistant, and SmartThings for voice control. Built with flame-retardant PC V0 material and overload protection, the module ensures safe and reliable operation. Its compact design fits inside standard 86-type and EU wall switch boxes, maintaining a clean and concealed installation. Specifications Model SONOFF DUALR3 Input Voltage 100–240 V AC, 50/60 Hz Wireless Protocol Wi-Fi IEEE 802.11 b/g/n (2.4 GHz) Number of Channels 2 Output Load (Switch Mode) Total up to 16 A (resistive load) Motor Mode Output Max. 2.5 A / 600 W motor load Power Monitoring Yes — real-time measurement of voltage, current, and power Control Methods eWeLink App, Amazon Alexa, Google Assistant, SmartThings Modes Supported Switch mode / Motor mode / Meter mode Blind/Curtain Position Control Yes — 0–100% precise positioning Dry Contact Supported Yes Installation Type In-wall, fits 86-type / EU wall box Dimensions 54 × 49 × 24 mm Operating Temperature -10 °C to +40 °C Material PC V0 flame-retardant housing Safety & Protection Overload protection Certifications CE / FCC / RoHS Applications Independent control of two lighting circuits Control of two electrical appliances Motorized curtain, blind, or roller shutter automation Energy consumption monitoring and optimization Smart scheduling for daily routines Integration into advanced smart home ecosystems Residential and small commercial automation projects Why Choose SONOFF DUALR3? Control two devices or one motorized shutter with one module Built-in power monitoring and percentage curtain control Compatible with Alexa, Google Assistant, SmartThings Hidden installation for a clean, modern smart home setup