1. Uvod
The SONOFF DUALR3 Lite is a flush-mounted Wi-Fi smart dual relay switch module designed to transform any standard switch into a smart switch. It enables wireless remote control via mobile devices or voice commands, integrating your home appliances into a smart network. This module is ideal for controlling lights, home appliances, and motorized facilities such as roller shutters, window shades, blinds, and awnings.
The DUALR3 Lite supports two primary working modes: Switch Mode i Motor Mode. It allows for flexible control and automation of various devices.

Image: SONOFF DUALR3 Lite Dual Relay Module, highlighting app and voice control compatibility.
Ključne karakteristike
- Dvostruka relejna kontrola: Independently control two connected appliances.
- Wi-Fi povezivanje: Remote control via the eWeLink app from anywhere.
- upravljanje glasom: Kompatibilno s Amazon Alexom i Google Homeom za rad bez upotrebe ruku.
- Pametne scene: Create automated routines and scenes for personalized control.
- Raspoređivanje i tajmeri: Set schedules and countdown timers for automatic on/off actions.
- Motorni način rada: Specifically designed for controlling 100-240V tubular motors used in motorized curtains, blinds, roller shutters, and awnings.
- Dvosmjerna kontrola: Achieve two-way control for lights using existing physical switches.
- Matter Bridge Compatibility: Works with Apple Home via eWeLink CUBE Matter Bridge for broader smart home integration.
Video: Demonstration of DUALR3 pairing and basic operation via the eWeLink app.
2. Važna sigurnosna uputstva
- Rizik od strujnog udara: Ovaj proizvod nije igračka i nije namijenjen djeci. Samo za odrasle.
- Profesionalna instalacija: Installation and maintenance should be performed by a qualified electrician. Do not wire when power is on to avoid electric shock.
- Temperatura okoline: Maksimalna temperatura okoline tokom upotrebe uređaja ne smije prelaziti 40°C.
- Pogodnost za klimu: Uređaj je prikladan samo za umjerenu klimu.
- ventilacija: Ensure proper ventilation. Do not impair ventilation by covering the appliance with items such as newspapers, tablecloths, or curtains.
- Otvoreni plamen: Ne stavljajte izvore otvorenog plamena, kao što su svijeće, na uređaj.
- Zaštita kruga: To ensure electrical safety, it is essential to install either a Miniature Circuit Breaker (MCB) or a Residual Current operated Circuit-breaker with Integral Overcurrent protection (RCBO) with an electrical rating of 15A before the DUALR3 Lite.
- Udaljenost razdvajanja: Under normal use conditions, this equipment should be kept at a separation distance of at least 20 cm between the antenna and the user's body.
3. Sadržaj paketa
The package for your SONOFF DUALR3 Lite Dual Relay Module typically includes:
- SONOFF DUALR3 Lite Module
- Montažna baza
- Korisnički priručnik (ovaj dokument)

Image: SONOFF DUALR3 Lite module and accessories in packaging.
4. Specifikacije
| Atribut | Vrijednost |
|---|---|
| Model | DUALR3 Lite |
| Napajanje | 100-240V AC, 50/60Hz |
| Maks. Struja | 15A (total), 10A (1 gang) |
| Max Power | 3300W (total), 2200W (1 gang) |
| Dimenzije proizvoda | 54*49*24mm |
| Boja | Bijelo |
| Wi-Fi Standard | IEEE 802.11 b / g / n 2.4 GHz |
| Sigurnosni mehanizam | WPA-PSK/WPA2-PSK |
| Vlažnost | 5% -95% relativne vlažnosti, bez kondenzacije |
| Materijal kućišta | Vatrootporni ABS V0 |
| Radna temperatura | -10°C do 40°C |
| Banda | 2 |
| Operativni sistemi | Android & iOS |
| Disconnection Type | Tip 1B |
| Stepen zagađenja | 2 |
| Rated Impulse Voltage | 2500V |

Slika: Detaljna view of the DUALR3 Lite module with specifications.
DUALR3 Lite vs. DUALR3 (Standard)
It is important to note the differences between the DUALR3 Lite and the standard DUALR3 module:
| Feature | DUALR3 | DUALR3 Lite |
|---|---|---|
| Power metering (real-time & historical) | ✓ | ✗ |
| Zaštita od preopterećenja | ✓ | ✗ |
| Roller motor stroke calibration | ✓ | ✗ |
| Progressbar control (motor position display) | ✓ | ✗ |
| Režim merača | ✓ | ✗ |
| Motor Mode | ✓ | ✓ |
| External switch control (Motor & Switch Mode) | ✓ | ✓ |
| Switch Mode | ✓ | ✓ |
Note: The DUALR3 Lite does not support power metering or overload protection features found in the standard DUALR3.

Image: Feature comparison between DUALR3 and DUALR3 Lite.
5. Instalacija
Before proceeding with installation, ensure the power is OFF at the main circuit breaker to prevent electric shock. All wiring should be performed by a qualified electrician.
5.1 Upute za ožičenje
Važno: Do not pull the wire directly from the live wire to the S1/S2 external switch. All connections to S1/S2 must originate from the DUALR3 Lite device itself.
Motor Mode Wiring (e.g., for Roller Shutters)
This mode is suitable for four-wire tubular motors. Connect the motor to the L Out 1 and L Out 2 terminals for forward and reverse operation. External momentary switches can be connected to S1 and S2 for manual control.

Image: AC Motor Wiring Demo for Motor Mode with momentary switches.
For dual relay momentary switch or 3-gang rocker switch configurations, refer to the detailed diagrams in the eWeLink app or the full PDF manual for specific wiring instructions.
Switch Mode Wiring (e.g., for Lights)
In Switch Mode, the DUALR3 Lite controls two output loads independently. You can connect existing physical switches (momentary, rocker, or ON/OFF) to S1 and S2 to retain manual control alongside app control.

Image: Compatible switch types for lights and roller shutters.
For double two-way control using SPDT switches, refer to the detailed diagrams in the eWeLink app or the full PDF manual.
Dry Contact Sensor Wiring (Follow Mode)
The DUALR3 Lite can also be used in Follow Mode with dry contact sensors. This allows the device to respond to signals from external sensors.

Image: Wiring for dry contact sensors in Follow Mode.
Ensure the neutral wire and live wire connections are correct. The device can still function if no physical light switch is connected to S1/S2. If S1/S2 are connected to physical switches, the corresponding working mode must be selected in the eWeLink APP.
5.2 Montaža
The DUALR3 Lite is designed for flush-mounted installation, typically behind a standard wall switch or within a junction box. It also features a detachable mounting base for DIN-Rail installation.
- Težina uređaja je manja od 1 kg.
- An installation height of less than 2 meters is recommended.

Image: In-wall and DIN-rail installation methods.
6. Podešavanje
6.1 Download the eWeLink App
The SONOFF DUALR3 Lite is controlled via the eWeLink app. Download it from your device's app store:
- For Android: Search "eWeLink" on Google Play.
- For iOS: Search "eWeLink" on the App Store.

Image: eWeLink app download options.
6.2 Power On and Pairing Mode
After powering on the DUALR3 Lite for the first time, it will automatically enter Bluetooth pairing mode. The Wi-Fi LED indicator will flash in a cycle of two short flashes and one long flash.
- If the device is not paired within 3 minutes, it will exit Bluetooth pairing mode.
- To re-enter pairing mode, long-press the configuration button on the device for about 5 seconds until the Wi-Fi LED indicator flashes in the two short, one long cycle.
6.3 Add Device to eWeLink App
Provjerite je li Bluetooth omogućen na vašem pametnom telefonu.
- Otvorite aplikaciju eWeLink.
- Tap the "+" icon and select "Add Device".
- Slijedite upute na ekranu u aplikaciji da biste dovršili proces uparivanja.
6.4 Compatible Pairing Mode (if Bluetooth pairing fails)
If Bluetooth pairing is unsuccessful, you can try the "Compatible Mode" for pairing:
- Long-press the pairing button for 5 seconds until the Wi-Fi LED indicator flashes in a cycle of two short flashes and one long flash.
- Long-press the pairing button again for 5 seconds until the Wi-Fi LED indicator flashes quickly. The device is now in Compatible Pairing Mode.
- In the eWeLink app, tap "+" and select "Add Device", then choose "Compatible Mode".
- For Android: Connect your phone to the Wi-Fi SSID starting with "ITEAD-******" (password: 12345678). Return to the eWeLink app and tap "Next".
- For iOS: In your phone's Wi-Fi settings, find and record the device ID from the "ITEAD-**********" SSID. In the eWeLink app, tap "+", select "Scan QR code", then "Add manually" and enter the recorded device ID.
- Budite strpljivi dok se uparivanje ne završi.
6.5 Wi-Fi LED Indicator Status
| Status LED indikatora | Opis |
|---|---|
| Blic (jedan dug i dva kratka) | Način Bluetooth uparivanja |
| Nastavlja se | Uređaj je uspješno povezan |
| Brzo treperi | Kompatibilni način uparivanja |
| Flashes quickly once (every 2s) | Unable to discover the router / Failed to connect to router |
| Flashes quickly twice (repeatedly) | Povežite se na ruter, ali ne uspijevate se povezati sa serverom |
| Treperi brzo tri puta | Nadogradnja |
7. Operating the DUALR3 Lite
Once paired, you can control your DUALR3 Lite using the eWeLink app, voice commands, or connected physical switches.
7.1 Radni režimi
After successful pairing, select the appropriate working mode in the eWeLink app based on your connected device:
- Prebacivanje načina rada: Controls two output loads independently. Ideal for lights and other on/off appliances.
- Motorni način rada: Suitable for four-wire tubular motors, such as those used in curtains and roller blinds. This mode allows for precise control of motor movement.
- Meter Mode (Not available for DUALR3 Lite): This mode is exclusive to the standard DUALR3 and focuses on power metering without controlling the relay state.
7.2 Kontrola aplikacija
The eWeLink app provides comprehensive control over your DUALR3 Lite:
- Daljinsko uključivanje/isključivanje: Turn connected devices on or off from anywhere.
- Zakazivanje: Set one-time or recurring schedules for automatic operation.
- Tajmeri za odbrojavanje: Configure devices to turn off after a set duration.
- Pametne scene: Create custom automation rules based on conditions like time, device status, or other smart home triggers.
- Kontrola dijeljenja: Grant access to family members to control the device.

Image: Remote control of a window via the eWeLink app.
7.3 Upravljanje glasom
Integrate your DUALR3 Lite with popular voice assistants for convenient hands-free control:
- Amazon Alexa: Use commands like "Alexa, turn off the light."
- Google Home: Use commands like "Hey Google, close the curtain."
- Siri (via eWeLink CUBE Matter Bridge): For advanced users, Siri voice control is available as a shortcut in eWeLink. Note that DUALR3 Lite does not natively support HomeKit.

Image: Hands-free voice control with Alexa and Google Home.

Image: SONOFF devices integrating with Apple Home via Matter Bridge.
7.4 Automated Motorized Facilities
In Motor Mode, the DUALR3 Lite can automate various motorized facilities, enhancing comfort and convenience:
- Roller Blinds/Shutters: Schedule opening and closing times to align with your daily routine or sunlight.
- zavjese: Automatically open curtains to wake up with natural light or close them for privacy and atmosphere.
- Awnings: Control awnings remotely to protect against sun or rain.

Image: DIY automated motorized facilities examples.

Image: Scheduling curtains for comfort.
8. Održavanje
8.1 Switch Network
If you need to change the Wi-Fi network your DUALR3 Lite is connected to:
- Long-press the pairing button on the device for 5 seconds until the Wi-Fi LED indicator flashes in a cycle of two short flashes and one long flash.
- The device will then enter Bluetooth pairing mode, allowing you to pair it with the new network via the eWeLink app.
8.2 Vraćanje na tvorničke postavke
To restore your DUALR3 Lite to its factory settings, delete the device from the eWeLink app. This action will reset all configurations on the device.
9. Otkrivanje problema
9.1 Fail to Pair Wi-Fi Devices with eWeLink App
- Način uparivanja: Ensure the device is in pairing mode (Wi-Fi LED indicator flashes two short, one long). The device automatically exits pairing mode if not paired within 3 minutes.
- Usluge lokacije: Turn on location services on your mobile phone and grant permission to the eWeLink app. Location information is used to obtain Wi-Fi list details.
- Wi-Fi opseg: Make sure your Wi-Fi network operates on the 2.4GHz band.
- SSID & Password: Verify that you have entered the correct Wi-Fi SSID and password. Avoid special characters. Incorrect passwords are a common cause of pairing failure.
- Blizina rutera: During pairing, keep the device close to the router for optimal signal transmission.
- Kompatibilni način rada: If standard Bluetooth pairing fails, try pairing using the Compatible Mode (refer to Section 6.4).
9.2 Wi-Fi Devices "Offline" Issues
If the Wi-Fi LED indicator blinks once every 2 seconds, it means the device failed to connect to the router. Check the following:
- Incorrect SSID/Password: Double-check your Wi-Fi SSID and password. Ensure no special characters (e.g., Hebrew, Arabic) are used, as the system may not recognize them.
- Router Capacity: Your router might have a low carrying capacity. If the number of connected devices exceeds the maximum, remove some devices or upgrade your router.
- Jačina signala: The Wi-Fi signal might be weak due to distance from the router or obstacles. Move the device closer or remove obstructions.
- MAC upravljanje: Ensure the device's MAC address is not blacklisted in your router's MAC management settings.
If the Wi-Fi LED indicator flashes twice repeatedly, it means the device connected to the router but failed to connect to the server. Check the following:
- Internet veza: Verify your internet connection is working normally (e.g., by browsing on your phone or PC).
- Router Capacity: As above, check if your router's capacity is exceeded.
- ISP Blocking: Contact your Internet Service Provider (ISP) to confirm that the eWeLink server addresses are not being blocked.
If these steps do not resolve the issue, submit your problem via the "Help & Feedback" section in the eWeLink App.
10. Savjeti za korisnike
- Version Clarity: Always confirm you are using the DUALR3 Lite model, as it has specific feature limitations compared to the standard DUALR3, particularly regarding power metering and overload protection.
- Mjerenje snage: The DUALR3 Lite does NOT include power metering functionality. If this feature is essential for your application, consider the standard DUALR3 model.
11. Informacije o usklađenosti
11.1 Izjava o usklađenosti FCC-a
This device complies with Part 15 of the FCC Rules. Operation is subject to the following 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. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna, increase the separation between the equipment and receiver, connect the equipment into an outlet on a circuit different from that to which the receiver is connected, consult the dealer or an experienced radio/TV technician for help.
FCC izjava o izloženosti radijaciji: Ova oprema je u skladu sa ograničenjima izloženosti zračenju FCC utvrđenim za nekontrolisano okruženje. Ovu opremu treba instalirati i koristiti na minimalnoj udaljenosti od 20 cm između radijatora i vašeg tijela. Ovaj predajnik ne smije biti smješten niti raditi zajedno s bilo kojom drugom antenom ili predajnikom.
11.2 ISED Notice (Innovation, Science and Economic Development Canada)
Ovaj uređaj sadrži predajnike/prijemnike koji su u skladu sa kanadskim RSS-ovima izuzetih od licence za inovacije, nauku i ekonomski razvoj. Rad je podložan sljedeća dva uslova: (1) Ovaj uređaj ne smije uzrokovati smetnje. (2) Ovaj uređaj mora prihvatiti sve smetnje, uključujući smetnje koje mogu uzrokovati neželjeni rad uređaja.
Ovaj digitalni aparat klase B usklađen je sa kanadskim ICES-003(B). Ovaj uređaj je usklađen sa RSS-247 Industry Canada. Rad je podložan uslovu da ovaj uređaj ne uzrokuje štetne smetnje.
ISED izjava o izloženosti radijaciji: Ova oprema je u skladu sa ISED granicama izloženosti radijaciji utvrđenim za nekontrolisano okruženje. Ovu opremu treba instalirati i koristiti na minimalnoj udaljenosti od 20 cm između radijatora i vašeg tijela. Ovaj predajnik ne smije biti smješten niti raditi zajedno s bilo kojom drugom antenom ili predajnikom.
11.3 Informacije o odlaganju i recikliranju EE otpada
All products bearing the WEEE symbol (crossed-out wheeled bin) are waste electrical and electronic equipment (WEEE) and should not be mixed with unsorted household waste. Protect human health and the environment by handing over your waste equipment to a designated collection point for the recycling of WEEE, appointed by the government or local authorities. Correct disposal and recycling help prevent potential negative consequences to the environment and human health.
11.4 Deklaracija o usklađenosti EU
Hereby, Shenzhen Sonoff Technologies Co., Ltd. declares that the radio equipment type DUALR3, DUALR3 Lite is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at: https://sonoff.tech/compliance/
Raspon radne frekvencije u EU:
- Wi-Fi: 802.11 b/g/n20: 2412–2472 MHz
- Wi-Fi: 802.11 n40: 2422-2462 MHz
- BLE: 2402-2480 MHz
EU izlazna snaga:
- Wi-Fi 2.4G: ≤20dBm
- BLE: ≤13dBm





