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Sonoff 4CH R3 Smart Switch 4 Channels Wi-Fi 16A
Intermediate Switches

Sonoff 4CH R3 Smart Switch 4 Channels Wi-Fi 16A Code: SNF-4CHR3

Key features:

  • Compatible with Alexa & Google Home
  • Connectivity: Wi-Fi
See full description

Top specs

  • Connectivity

    Wi-Fi

    The most common connectivity option for individual switches, as it connects directly to the router.

  • Usage

    Lighting

    For remote control of lamps and lighting fixtures.

    Garage door

    They allow remote control (opening and closing) of garage doors.

  • Compatible Application

    The compatible app that you download to your mobile phone to control the switch remotely.

  • Maximum Load

    It is the maximum amount of current that the switch can withstand without burning out. It shows you how many or how powerful devices you can connect: for simple lights, 10A is enough, while for power-hungry devices (such as a water heater) more Amperes are required.

    For example, a typical LED bulb (e.g. 10W) draws very little current, about 0.04 Amperes. This means that a standard smart switch of 10A is more than sufficient for its operation.
  • Dimensions 90x34x34mm

  • Smart Ecosystem

    Alexa

    The Amazon automation platform based on the Alexa voice assistant. It offers voice control capabilities and the creation of "Skills" for connecting and automatically coordinating multiple smart devices.

    Google Home

    Google's platform for managing and controlling smart devices. It allows operation via Google Assistant with voice commands in Greek and the integration of the device into automated routines.

    IFTTT

    Automation ecosystem that connects the device with applications and other smart gadgets. Allows the creation of smart scenarios (Applets) for automatic operation based on location, weather, or other digital notifications.
  • See all
20 94 €
Delivery by Mon, 09 Nov
14,00 €   shipping cost
Sent from Greece
From OnPrice 4.9 (33)
4.9 (33 reviews)
Greece
3 pieces
See Sockets & Switches on the page of OnPrice

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Product report

Description

Description

The four-channel Sonoff 4CH R3 smart switch connects via Wi-Fi and controls up to four connected devices, such as lights and home appliances. It is managed through the eWeLink app on Android and iOS, with remote control, control sharing, and scheduling for automatic switching on or off. It works with Alexa, Google Home, and IFTTT.

It supports Self-locking, Interlock, and Inching modes: devices can operate independently, one can be switched on while the others are switched off, or a device can be switched off automatically after 0.5–3600 s. Timers also work when there is no network connection.

  • Type: Wi-Fi smart switch
  • Channels: 4
  • Maximum load: 16 A total, 10 A per channel
  • App: eWeLink
  • Compatibility: Alexa, Google Home, IFTTT
  • Wi-Fi frequency: 2.4 GHz
  • Wi-Fi standard: IEEE 802.11 b/g/n
  • Input and output voltage: AC 100–240 V, 50/60 Hz
  • Enclosure material: PC V0
  • Protection rating: IP20
  • Operating temperature: -10 °C to 40 °C
  • Operating humidity: 5%–95% RH, non-condensing
  • Dimensions: 14.5 × 9 × 3.4 cm
  • Colour: White
  • Quantity: 1

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Product Number
SNF-4CHR3

Specifications

Switch Type
Smart Switch
Number of Channels
4

Number of Channels

Indicates how many different lamps or devices the switch can control independently. For example, a 1-channel switch controls one lighting circuit, while a 4-channel switch can manage up to four different devices from the same unit.
Usage
Lighting, Garage door

Usage

Lighting

For remote control of lamps and lighting fixtures.

Garage door

They allow remote control (opening and closing) of garage doors.
Dimensions (Spec Summary)
90x34x34mm

Smart Attributes

Smart Ecosystem
Alexa, Google Home, IFTTT

Smart Ecosystem

Alexa

The Amazon automation platform based on the Alexa voice assistant. It offers voice control capabilities and the creation of "Skills" for connecting and automatically coordinating multiple smart devices.

Google Home
Google's platform for managing and controlling smart devices. It allows operation via Google Assistant with voice commands in Greek and the integration of the device into automated routines.
IFTTT
Automation ecosystem that connects the device with applications and other smart gadgets. Allows the creation of smart scenarios (Applets) for automatic operation based on location, weather, or other digital notifications.
Connectivity
Wi-Fi

Connectivity

Wi-Fi

The most common connectivity option for individual switches, as it connects directly to the router.

Additional Features

With Remote Control
No

With Remote Control

It allows you to control the switch remotely with a remote control, without needing your smartphone.
Maximum Load
16 A

Maximum Load

It is the maximum amount of current that the switch can withstand without burning out. It shows you how many or how powerful devices you can connect: for simple lights, 10A is enough, while for power-hungry devices (such as a water heater) more Amperes are required.

For example, a typical LED bulb (e.g. 10W) draws very little current, about 0.04 Amperes. This means that a standard smart switch of 10A is more than sufficient for its operation.
Compatible Application
eWeLink

Compatible Application

The compatible app that you download to your mobile phone to control the switch remotely.
Pieces
1

Features

Dimmer
No

Dimmer

It allows you to adjust the brightness of the lighting instead of simple on/off operation. Bulbs that support dimmable function are required.
Dry Contact
No

Dry Contact

Dry Contact. It gives you the ability to safely control devices that have their own power supply. It does not transfer current but allows you to control them remotely, without causing a short circuit or damage.
Consumption Measurement
No

Consumption Measurement

It allows you to see in real time how much electricity your connected device is consuming and to keep a usage history, through your smartphone and the compatible app.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (29)

Reviews

4.8
29
4.8
Review this product
  1. 26
  2. 1
  3. 2
  4. 2 stars
    0
  5. 1 star
    0
Review this product

What do users say? AI-generated summary

Overall, the feedback is very positive, with users mainly praising the switch’s reliability and how easy it is to set up automations. They also mention using it daily in electrical panels and its good compatibility with Alexa. However, some report difficulty connecting to Wi‑Fi, occasional disconnections, or a slow app, while the physical switches don’t always sync properly with app controls.

  • Redow
    4
    Redow

    the analog switches are only connected in parallel to the outputs, so the app does not know whether the lights are on or off if you operate them from the physical switches, nor can you turn them off from the app if they have been activated from the physical switches.

    Translated from Greek ·
    0
  • Montekristo7
    3
    Montekristo7

    I have 7 Sonoff devices at home, all single-channel and one like this, the single ones work perfectly, the 4-channel is constantly offline, whenever it feels like it, it comes online, I'm thinking of replacing it and putting 4 singles in its place

    Translated from Greek ·
    0
  • Aris_K27
    5
    Aris_K27

    This particular model is the basic R3, not the Pro. It does not have 433MHz RF control as shown in the first image.

    Translated from Greek ·
    1
  • gnkaragiorgis
    5
    gnkaragiorgis

    Amazing device, I have purchased most products from the company and I am very satisfied

    Translated from Greek ·
    0
  • Konstantinos_Stavroulakis
    5
    Konstantinos_Stavroulakis

    Placed on a table, it has been working flawlessly for two years now. It has never frozen and is used daily. It works perfectly with Alexa!

    Translated from Greek ·
    2
  • See all

Description & Specifications

The four-channel Sonoff 4CH R3 smart switch connects via Wi-Fi and controls up to four connected devices, such as lights and home appliances. It is managed through the eWeLink app on Android and iOS, with remote control, control sharing, and scheduling for automatic switching on or off. It works with Alexa, Google Home, and IFTTT.

It supports Self-locking, Interlock, and Inching modes: devices can operate independently, one can be switched on while the others are switched off, or a device can be switched off automatically after 0.5–3600 s. Timers also work when there is no network connection.

  • Type: Wi-Fi smart switch
  • Channels: 4
  • Maximum load: 16 A total, 10 A per channel
  • App: eWeLink
  • Compatibility: Alexa, Google Home, IFTTT
  • Wi-Fi frequency: 2.4 GHz
  • Wi-Fi standard: IEEE 802.11 b/g/n
  • Input and output voltage: AC 100–240 V, 50/60 Hz
  • Enclosure material: PC V0
  • Protection rating: IP20
  • Operating temperature: -10 °C to 40 °C
  • Operating humidity: 5%–95% RH, non-condensing
  • Dimensions: 14.5 × 9 × 3.4 cm
  • Colour: White
  • Quantity: 1

Manufacturer

Manufacturer Details

Warnings & Safety Information
Product Number
SNF-4CHR3

Specifications

Switch Type
Smart Switch
Number of Channels
4

Number of Channels

Indicates how many different lamps or devices the switch can control independently. For example, a 1-channel switch controls one lighting circuit, while a 4-channel switch can manage up to four different devices from the same unit.
Usage
Lighting, Garage door

Usage

Lighting

For remote control of lamps and lighting fixtures.

Garage door

They allow remote control (opening and closing) of garage doors.
Dimensions (Spec Summary)
90x34x34mm

Smart Attributes

Smart Ecosystem
Alexa, Google Home, IFTTT

Smart Ecosystem

Alexa

The Amazon automation platform based on the Alexa voice assistant. It offers voice control capabilities and the creation of "Skills" for connecting and automatically coordinating multiple smart devices.

Google Home
Google's platform for managing and controlling smart devices. It allows operation via Google Assistant with voice commands in Greek and the integration of the device into automated routines.
IFTTT
Automation ecosystem that connects the device with applications and other smart gadgets. Allows the creation of smart scenarios (Applets) for automatic operation based on location, weather, or other digital notifications.
Connectivity
Wi-Fi

Connectivity

Wi-Fi

The most common connectivity option for individual switches, as it connects directly to the router.

Additional Features

With Remote Control
No

With Remote Control

It allows you to control the switch remotely with a remote control, without needing your smartphone.
Maximum Load
16 A

Maximum Load

It is the maximum amount of current that the switch can withstand without burning out. It shows you how many or how powerful devices you can connect: for simple lights, 10A is enough, while for power-hungry devices (such as a water heater) more Amperes are required.

For example, a typical LED bulb (e.g. 10W) draws very little current, about 0.04 Amperes. This means that a standard smart switch of 10A is more than sufficient for its operation.
Compatible Application
eWeLink

Compatible Application

The compatible app that you download to your mobile phone to control the switch remotely.
Pieces
1

Features

Dimmer
No

Dimmer

It allows you to adjust the brightness of the lighting instead of simple on/off operation. Bulbs that support dimmable function are required.
Dry Contact
No

Dry Contact

Dry Contact. It gives you the ability to safely control devices that have their own power supply. It does not transfer current but allows you to control them remotely, without causing a short circuit or damage.
Consumption Measurement
No

Consumption Measurement

It allows you to see in real time how much electricity your connected device is consuming and to keep a usage history, through your smartphone and the compatible app.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (29)

4.8
29
4.8
Review this product
  1. 26
  2. 1
  3. 2
  4. 2 stars
    0
  5. 1 star
    0
Review this product

What do users say? AI-generated summary

Overall, the feedback is very positive, with users mainly praising the switch’s reliability and how easy it is to set up automations. They also mention using it daily in electrical panels and its good compatibility with Alexa. However, some report difficulty connecting to Wi‑Fi, occasional disconnections, or a slow app, while the physical switches don’t always sync properly with app controls.

  • Redow
    4
    Redow

    the analog switches are only connected in parallel to the outputs, so the app does not know whether the lights are on or off if you operate them from the physical switches, nor can you turn them off from the app if they have been activated from the physical switches.

    Translated from Greek ·
    0
  • Montekristo7
    3
    Montekristo7

    I have 7 Sonoff devices at home, all single-channel and one like this, the single ones work perfectly, the 4-channel is constantly offline, whenever it feels like it, it comes online, I'm thinking of replacing it and putting 4 singles in its place

    Translated from Greek ·
    0
  • Aris_K27
    5
    Aris_K27

    This particular model is the basic R3, not the Pro. It does not have 433MHz RF control as shown in the first image.

    Translated from Greek ·
    1
  • gnkaragiorgis
    5
    gnkaragiorgis

    Amazing device, I have purchased most products from the company and I am very satisfied

    Translated from Greek ·
    0
  • Konstantinos_Stavroulakis
    5
    Konstantinos_Stavroulakis

    Placed on a table, it has been working flawlessly for two years now. It has never frozen and is used daily. It works perfectly with Alexa!

    Translated from Greek ·
    2
  • See all
20,94 €
14,00 €   shipping cost