SONOFF DUALR3 & Lite User Manual V1.3
Model: DUALR3, DUALR3 Lite
Product Introduction
The SONOFF DUALR3 & Lite is a 2-Gang Wi-Fi Smart Switch designed to remotely control household devices. It allows users to turn devices on/off from anywhere via a smartphone, set schedules, and share control with family members.
It is recommended that the device weight is less than 1 kg, and the installation height is less than 2 meters.
Key Features
- ? Remote Control
- ⏱️ Single/Countdown Timing
- ? Share Control
- ? Smart Scene
- ? Sync Status
- ? Power Monitoring (DUALR3 only)
- ⚡ Over-load Protection (DUALR3 only)
- ? Inching Mode
- ? Power-on State
- ? LAN Control
Operating Instructions
1. Power Off
[Safety Warning Icon] To avoid electric shocks, please consult the dealer or a qualified professional for help when installing and repairing. Do not wire when power is on.
2. Wiring Instructions
[Safety Warning Icon] Do not pull the wire directly from the live wire to the S1/S2 external switch! Must be wired from the device.
Motor Mode Wiring
This mode is suitable for four-wire tubular motors such as curtain and roller blind motors.
Light Fixture Wiring
This section details wiring for light fixtures.
Dry Contact Sensors
This diagram shows the wiring for connecting dry contact sensors.
Important Notes:
- If S1/S2 are not connected to a mechanical switch, the device will still function normally.
- If S1/S2 are connected to a physical light switch, the corresponding working mode must be selected in the eWeLink APP for normal use.
- For electrical installation safety, it is essential to install a Miniature Circuit Breaker (MCB) or Residual Current operated Circuit-breaker with Integral Overcurrent protection (RCBO) rated at 15A before the DUALR3/DUALR3 Lite.
3. Download the eWeLink App
Download the eWeLink app to manage your device. Available for Android and iOS.
4. Power On
After powering on, the device enters Bluetooth pairing mode by default during the first use. The Wi-Fi LED indicator will flash in a cycle of two short and one long flash. If not paired within 3 minutes, the device exits pairing mode. To re-enter, long-press the pairing button for approximately 5 seconds until the Wi-Fi LED indicator shows the same flashing pattern.
5. Add Device
Follow these steps to add the device using the eWeLink app:
- Tap the '+' icon, then select 'Add Device'.
- Follow the on-screen prompts in the App.
- [Bluetooth icon] Ensure your phone's Bluetooth is turned on when adding a device.
Compatible Pairing Mode
If Bluetooth pairing fails, try 'Compatible Mode'. Long-press the pairing button for 5 seconds until the Wi-Fi LED indicator shows two short flashes and one long flash. Then, long-press the pairing button again for 5 seconds until the Wi-Fi LED indicator flashes quickly. The device will enter Compatible Pairing Mode.
For Android System:
In the app, tap '+', select 'Add Device', then choose 'Compatible Mode'. Connect your mobile device to the Wi-Fi SSID 'ITEAD-******' with password '12345678'. Return to the eWeLink app and tap 'Next' to complete pairing.
For iOS System:
When the device is in compatible mode, find the Wi-Fi list on your mobile phone and record the device ID (ITEAD-**********, the last 10 digits). In the eWeLink app, tap '+', select 'Scan', then tap 'Manual Input' at the bottom of the screen, and enter the recorded device ID. Tap 'Next' to complete pairing.
Install Device in Mounting Box
The device can be installed in standard 86mm or 120mm mounting boxes.
Specifications
| Specification | Details |
|---|---|
| Model | DUALR3, DUALR3 Lite |
| Rating | 100-240V~, 50/60Hz μ |
| Resistive Load | 2400W@240V~10A/Gang, 3600W@240V~15A Total |
| Motor Load | 10-240W/1A |
| Wi-Fi | IEEE 802.11 b/g/n 2.4GHz |
| Frequency range | 2400-2483.5MHz |
| Version Information | Hardware Versions: V1.0, Software Versions: V1.0 |
| Maximum RF output power | Wi-Fi: 19dBm(e.i.r.p), BLE: 4dBm(e.i.r.p) |
| Operating systems | Android & iOS |
| Number of gangs | 2-Gang |
| Working temperature | -10°C~40°C |
| Material | PC V0 |
| Dimension | 54x49x24mm |
| Disconnection Type | Type 1B |
| Pollution degree | 2 |
| Rated impulse voltage | 2500V |
Wi-Fi LED Indicator Status Instruction
| LED Indicator Status | Status Instruction |
|---|---|
| Flashes (one long and two short) | Bluetooth Pairing Mode |
| Keeps on | Device is connected successfully |
| Flashes quickly | Compatible Pairing Mode |
| Flashes quickly once | Unable to discover the router |
| Flashes quickly twice | Connect to the router but fail to connect to server |
| Flashes quickly three times | Upgrading |
Working Mode
After pairing, select the corresponding mode from switch, motor, and meter modes according to the connected device.
- Switch Mode: Control two output loads independently.
- Motor Mode: Suitable for four-wire tubular motors such as curtain and roller blind motors.
- Meter Mode (DUALR3): The relay remains on and cannot be turned off. This mode focuses on power metering.
Switch Network
If you need to change the network, long-press the pairing button for 5 seconds until the Wi-Fi LED indicator changes in a cycle of two short and one long flash. Release the button, and the device enters Bluetooth pairing mode, allowing you to pair again.
Factory Reset
Deleting the device in the eWeLink app will restore it to factory settings.
Common Problems
Fail to pair Wi-Fi devices with eWeLink APP
- Ensure the device is in pairing mode. The device exits pairing mode automatically if not paired within 3 minutes.
- Turn on location services on your mobile phone and grant permission. Location information is needed to obtain the Wi-Fi list. If location is disabled, the device cannot be added.
- Ensure your Wi-Fi network runs on the 2.4GHz band.
- Enter the correct Wi-Fi SSID and password. Avoid special characters, as they can cause pairing failures.
- For better signal transmission during pairing, place the device close to the router.
- Try pairing the device in compatible mode.
Wi-Fi devices "Offline" issues
Check the Wi-Fi LED indicator status:
- LED blinking once every 2 seconds indicates failure to connect to the router.
- Ensure correct Wi-Fi SSID and password entry, without special characters (e.g., Hebrew, Arabic characters) which the system may not recognize.
- Check if your router has a low carrying capacity or if the Wi-Fi signal is weak due to distance or obstacles.
- Verify the device's MAC address is not on your router's MAC management blacklist.
LED indicator flashes twice on repeated means you fail to connect to the server.
- Ensure your internet connection is normal.
- Check if your router's device limit has been reached. Remove devices or use a router with higher capacity if necessary.
- Contact your ISP to confirm server addresses are not blocked:
- cn-disp.coolkit.cc (China Mainland)
- as-disp.coolkit.cc (Asia except China)
- eu-disp.coolkit.cc (EU)
- us-disp.coolkit.cc (US)
If problems persist, submit an issue via 'Help & Feedback' in the eWeLink App.
Product Hazardous Substances
This table lists the hazardous substances in the product's components, based on SJ/T 11364 and GB/T 26572 standards.
| Component Name | Lead (Pb) | Mercury (Hg) | Cadmium (Cd) | Hexavalent Chromium (Cr VI) | Polybrominated Biphenyls (PBB) | Polybrominated Diphenyl Ethers (PBDE) |
|---|---|---|---|---|---|---|
| Plastic parts | ○ | ○ | ○ | ○ | ○ | ○ |
| Electronic components | X | ○ | ○ | ○ | ○ | ○ |
| Packaging box | ○ | ○ | ○ | ○ | ○ | ○ |
| PCB board | ○ | ○ | ○ | ○ | ○ | ○ |
| Metal parts | ○ | ○ | ○ | ○ | ○ | ○ |
○: Indicates the content of the hazardous substance in all homogeneous materials of this component is below the limit requirement of GB/T 26572. X: Indicates the content of the hazardous substance in at least one homogeneous material of this component exceeds the limit requirement of GB/T 26572.
Execution Standard: GB/T 16915.2
Compliance Information
FCC Compliance Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. It should be installed and operated with a minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
ISED Notice (Canada)
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) This device must accept any interference, including interference that may cause undesired operation of the device. This Class B digital apparatus complies with Canadian ICES-003(B) and RSS-247.
ISED Radiation Exposure Statement
This equipment complies with ISED radiation exposure limits set forth for an uncontrolled environment. It should be installed and operated with a minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Important Safety Instructions
- CAUTION: Risk of electric shock. This product is not a toy and not intended for use by children. For adult use only.
- The maximum ambient temperature during use must not exceed 40°C.
- The appliance is suitable for moderate climates only.
- Ventilation must not be impaired by covering the appliance with items like newspapers, tablecloths, or curtains.
- Naked flame sources, such as candles, must not be placed on the appliance.
SAR Warning
Under normal use, this equipment should be kept at a separation distance of at least 20 cm between the antenna and the user's body.
WEEE Disposal and Recycling Information
Products bearing the WEEE symbol are waste electrical and electronic equipment. They should not be mixed with unsorted household waste. Hand over waste equipment to a designated collection point for recycling. Correct disposal helps prevent negative consequences to the environment and human health.
For CE Frequency
EU Operating Frequency Range: Wi-Fi: 802.11 b/g/n20: 2412–2472 MHz, 802.11 n40: 2422-2462 MHz; BLE: 2402-2480 MHz
EU Output Power: Wi-Fi 2.4G <20dBm; BLE ≤13dBm
EU Declaration of Conformity
Shenzhen Sonoff Technologies Co., Ltd. declares that the radio equipment type DUALR3, DUALR3 Lite complies with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at: https://sonoff.tech/compliance/
