SONOFF - WIFI and 433 MHz ON/OFF smart switch - 4 channels
  • SONOFF - WIFI and 433 MHz ON/OFF smart switch - 4 channels
  • SONOFF - WIFI and 433 MHz ON/OFF smart switch - 4 channels
  • SONOFF - WIFI and 433 MHz ON/OFF smart switch - 4 channels
  • SONOFF - WIFI and 433 MHz ON/OFF smart switch - 4 channels
  • SONOFF - WIFI and 433 MHz ON/OFF smart switch - 4 channels
  • SONOFF - WIFI and 433 MHz ON/OFF smart switch - 4 channels
  • SONOFF - WIFI and 433 MHz ON/OFF smart switch - 4 channels

SONOFF - WIFI and 433 MHz ON/OFF smart switch - 4 channels

€41.99 Tax included

The SONOFF smart switch offers the possibility of controlling 4 devices independently of your home.

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SONOFF 4CHPROR3 is 4-gang Wi-Fi Smart Switches designed to give you the ability to integrate smart control into your existing home to enable a smart home.

This smart switch has 4 gangs that can be used to control lights and other home appliances at the same time in four areas of your home.

4CHPROR3 is designed with an additional function for RF control. The function is purposely adopted to make you turn on/off the device connected with 4CHPROR3 via the RM433 remote controller.

Actually, SONOFF has ever released a type of 4-gang smart switch (4CHPROR2) which comes with almost same functions with 4CHPROR3.

But all the above units are still different in 3 working modes including self-locking, interlock and inching mode.

The new improvement on 4CHPROR3 compared with 4CHPROR2 is for users to set these 3 working modes on eWeLink APP instead of the hardware itself, easier to operate.

So you can enable self-locking mode to turn on/off 4 connected devices separately, interlock mode to turn on 1 connected device every time and turn off the rest of devices simultaneously and inching mode to turn on 1 connected device and then make it turn off automatically after a given time (0.5 - 3600s).

For the device away from the switch, you can create a moveable space in virtue of a DIN rail to make them be connected.

Simply activate devices through your voice when the switch works with Alexa and Google Home smart assistant.


  • Remotely control connected lights or devices via APP.
  • 3 working modes with self-locking, interlock and inching mode for even remote control garage door and roller blinds.
  • Support scheduling a timer to make devices automatically start and stop to work.
  • Customize smart scenes to make the device connected with the switch to trigger other devices.
  • Share the control permission of devices to other accounts to control together.
  • Check real-time ON/OFF status of devices on your mobile phone.
  • Power on state allows users to set the On/Off/Keep status for the connected device before power failure and ensure it remains the arranged status after power restoration.


  • Voltage Range: 100-240V AC 50/60Hz (DC: 9-23V)
  • Max. Load:
    • 10A/2200W/gang
    • 40A/8800W/Total
  • Wireless Frequency: WiFi 2.4GHz
  • Wireless Standard: IEEE802.11 b/g/n 2.4GHz (2400M-2483.5M)
  • Security Mechanism: WPA/WPA2
  • Enclosure Material: PCV0
  • Gang: 4
  • Dimension:145*90*34 (mm)
  • Operating Temperature(recommended): -10ºC / +40ºC (14°F-104°F)
  • Operating Humidity: 5%-95%RH, Non-condensing
  • 4CHPROR3 Certification: CE, FCC 
More than 20 Items

Data sheet

Din Rail Module
RF 433MHz
Power Supply
Main power
Amazon Echo
EWeLink (SonOff)
Google Home
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3.7 /5

Based on 3 customer reviews

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Eric L. published the 01/02/2023 following an order made on 25/01/2023


Le Sonoff 4CHPRO est un super produit avec un rapport qualité prix très intéressant. J'en utilise déjà un que j'ai flashé avec ESPeasy pour l'intégrer à ma domotique Jeedom. Avec ce deuxième exemplaire, je vais faire des tests avec Tasmota. Le seul manque de ce Sonoff 4CHPRO est une connexion réseau filaire pour une sécurité optimum, mais on ne peut pas tout avoir pour un prix aussi compétitif. Une des grandes force de ce module est l'accès au flashage. Il n'a pas d'entrée logique sur bornier mais il est possible, pour les bricoleurs, de se substituer aux boutons de commande existants.

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Anonymous customer published the 25/03/2021 following an order made on 14/03/2021


J'ai acheté ce produit , pensant qu'il avait le mode DIY , et j'ai découvert après l'achat que ce n'était pas le cas, j'ai du me faire confirmer par le SAV

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Anonymous customer published the 26/02/2021 following an order made on 13/02/2021


Pour l'instant, j'ai un peu de mal à le flash avec le firmware Tasmota. Je ne désespère pas d'y arriver. Sinon le produit est intéressant car les relais ne partagent par le même commun que l'alimentation comme c'est le cas sur les modules basic. De plus avoir le choix des sortis Normalement Ouvert ou Normalement Fermé est un vrai plus pour contrôler des vrais relais de puissance dans un tableau.

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