SmartWise 5V-32V 2-channel Wi-Fi + RF smart relay switch, with dry contact switch support and momentary switch mode, eWeLink / Sonoff compatible

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SmartWise (Sonoff compatible) is the 2-channel version of 5-32V power supplied WiFi-equipped relay product-line, supports momentary and normal switch, or voltage-free dry contact switch, comes without plastic boxing. Supports interlock mode, capable of controling rotary engines.

This product version also contains RF receiver, and can be controlled by Sonoff RF remote controllers and SmartWise RF wall swicthes.


SKU: SMW-REL-532V-2RF Category:


SmartWise is a 2-channel smart relay-switch, ideal solution for remote control of motorized gates, garage doors, or other electric devices/circuits. This smart device is compatible with the eWeLink smartphone app managing other Sonoff products. By using the WiFi-equipped smart relay close or break any circuits, thus turn ON / OFF any devices connected to the relay.

This is the new August 2020 product version, featuring not not just WiFi but RF receiver chips, so that the smart relay can also be controlled by Sonoff RF remote controllers and SmartWise RF wall switches. 

The WiFi smart relay needs a 5V USB or 7V-32V DC power supply. Any connected circuits operate independently from the relay’s power supply, the relay supports 90-250V/10A alternate current connected to COM input or manages 0-30V/10A direct current in NO or NC mode. The smart device manages volt-free dry-contact switching too.

The smart relay is remotely controllable via Internet and iOS (Apple) or Android smartphone App, and you can set scheduled turning ON / OFF. Share remote control in the App with your family.

Supports momentary switch mode, closes or breaks the connected circuits after 1 sec. Ideal solution for remote control of electric gates or PC power adapters. 

2 and 4 channel versions are also ideal for engine-control (where 2 or more axis motion is required), because the relay supports “interlock” mode, where switching one of the circuits turns the other circuits automatically off. 

Product features:

  • Remote ON / OFF – Anytime, anywhere, from now on you can turn all your appliances on and off remotely.
  • Relay power supply: 5V DC USB or 7V-32V DC
  • No of circuits controlled: 4
  • Switched gangs: voltage-free dry contact or 90-250V/10A AC or 0-30V/10A DC
  • Mobil App – free iOS és Android mobil App: eWeLink
  • RF remote – compatible with 433 MHz Sonoff and SmartWise RF remote controllers and RF wall switches (rolling/jump code remotes not supported)
  • Sync status – Check actual relay status (turned ON or OFF) with the mobile App
  • Timer – Various timer functions: single time, scheduled turn on/off, countdown/timer, loop.
  • Share control – Control the device together with your family
  • Scene – Turn ON / OFF a gang of devices with one tap
  • Smart scene – Triggered ON/OFF by temp, hum or other environmental sensors
  • Compatibility – Works perfectly with Amazon Alexa, Google Assistant, IFTTT and Google Nest



The relay supports three modes: normal (self-toggle) switch mode, momentary switch mode and interlock mode. Choose between any with the button on main panel.

Supports two types of connection: with COM+NO type the relay closes the circuit when switched, with COM+NC type the relay breaks the circuit when switched.


Additional information

Dimensions 6.7 × 4.1 × 2 cm
Product type

smart relay

Number of electric gangs controlled


Momentary switch (Inching)


Physical switch


DIN rail compatible




433MHz RF remote controllable

yes (remote control not included)

Remotely controllable via internet


Voice control

Amazon Alexa and Google Assistant compatible

Power meter


Schedulers, timers

yes (single time, schedule, timer/countdown)

Smartphone app

yes, free app: eWeLink (Android, iOS)


Amazon Echo, Echo Dot, Amazon Tap, Google Home, Google Nest, IFTTT


relay power supply: 5V USB or 7V-32V DC

Brand / Manufacturer


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