SONOFF DUALR3 Smart Dual Relay Two-Way Switch with Power Metering
1-year warranty
One-year warranty from the date you receive the product. We replace the product if a manufacturing defect is confirmed. We do not offer repairs.
Fast delivery
Delivery takes 24–48 hours after your order is actually handed to the courier. Courier handover is at 8 pm Baghdad time.
Expert technical support
Technical support on WhatsApp, Saturday–Thursday, 8 am–11 pm Baghdad time.
Contact us on WhatsApp 07760808466
The SONOFF DUALR3 combines dual-channel control and energy measurement in one Wi-Fi unit. Use it for two suitable loads in Switch mode, or for a compatible blind motor in Motor mode.
Switch two separate loads on or off in Switch mode. For monitoring without control, Meter mode provides measurement only.
Monitor energy data for each channel in the DUALR3; the measurement feature is specific to this version and is not available in the DUALR3 Lite.
Supports external switch inputs, including push buttons, conventional switches and two-location control arrangements. A specialist selects the wiring, then the appropriate switch mode is set in eWeLink. The unit can also operate without an external switch when configured for app control.
In Motor mode, the two channels control the two directions of one motor, preventing both directions from operating together. Open, close and stop commands are available; percentage control requires a suitable motor and travel calibration.
| Specification | Details |
|---|---|
| Model | DUALR3 |
| Power supply | 100–240V AC, 50/60Hz |
| Resistive load | 10A per channel; 15A maximum total |
| Motor load | 10–240W / 1A |
| Connectivity | Wi-Fi 2.4GHz, IEEE 802.11 b/g/n |
| Dimensions | 54 × 49 × 24 mm |
| Channels | Two independent channels in Switch mode, or two directions of one motor in Motor mode |
| Housing and temperature | PC V0 / −10 to 40 °C |
| Operating modes | Switch / Motor / Meter |
Choose the mode to match the wiring and load; it is not just a change to the app’s appearance. Do not use the unit for two independent loads and a blind motor at the same time.
A straightforward example is an AC tubular motor with a neutral wire, a separate wire for each direction, and an earth wire; it must be within 10–240 W / 1 A. Some motors with both wall-switch and remote control can also work through their appropriate wall-switch connections.
A motor controlled only by a built-in remote receiver, with supply wires but no separate direction wires, does not automatically become compatible. The unit is also not a general-purpose dry-contact output or a DC motor controller.
To reach a specific opening percentage, the motor needs steady movement and correctly set travel limits, followed by calibration in the app. Without suitable travel limits, do not assume accurate percentage control.
These examples do not mean every motor or lamp is suitable; check the load specifications, starting current and installation-box space first. The unit is not a lamp dimmer or a general-purpose motor-speed controller.
DUALR3 displays voltage, current, power and consumption data for each channel, with a history you can review. Switch mode provides schedules, countdowns, repeating on/off cycles and automatic shutoff after a set duration; Motor mode supports scheduled motor movement.
In supported modes, OPS settings can switch off a channel when the configured monitoring thresholds are exceeded. This function is not presented as short-circuit or leakage protection, and should not be assumed to provide a disconnect command in Meter mode.
Share control with other eWeLink accounts, and link the service to supported platforms such as Alexa and Google Home for voice control. Local control through the same router is available for supported functions; access from outside the home and cloud integration require a suitable internet connection.
DUALR3 is not a native Matter device and does not need a Zigbee gateway. Do not assume all energy settings or operating modes carry over to every third-party platform. For additional integrations, check support for the exact model and operating mode.
When: A time set in an eWeLink schedule is reached.
Action: Turn off the selected lighting channel.
A qualified electrician installs and maintains it after disconnecting the supply; do not make connections while power is present, and an app command is not isolation for maintenance. The SONOFF manual requires a 15 A MCB or RCBO breaker upstream of the unit, with circuit suitability reviewed.
For resistive loads, the limit remains 10 A per channel and 15 A in total; both channels must not each carry 10 A at the same time. The separate motor rating of 1 A does not become 10 A because both outputs are used.
The electrician must follow SONOFF’s diagram for the external switches and their mode; do not treat their terminals as dry contacts that are safe to touch. The two load outputs carry mains voltage; they are not isolated, voltage-free outputs.
Check the motor type, load limits, and wiring for both directions before buying. A motor with wireless-only control is not necessarily compatible; a specialist must review the required control method.
This page is for DUALR3, which includes energy metering and Meter mode. Do not apply these metering specifications to Lite, even if the housings look similar.
Yes. It needs both live and neutral for its supply, so it is not an option for a live-wire-only installation. A specialist should check neutral availability, box depth and cable routing before purchase.
