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SmartWise 5V-32V 2-gang smart relay switch, with dry contact and momentary switch, eWeLink / Sonoff compatible, Wi-Fi

SmartWise (Sonoff compatible) is the 4-channel version of 5-32V power supplied WiFi-equipped relay product-line, supports impulse and normal switch, or volt-free dry contact switch, comes without plastic boxing. Supports interlock mode, capable of controling rotary engines..


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Supported protocols:
in stock (30+ pcs)

This is a 2-gang smart relay-switch from Sonoff-compatible SmartWise brand, ideal solution for remote control of motorized gates, garage doors, irrigation systems, 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 you can close or break any circuits, and turn ON / OFF any devices connected to the relay.

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
  • Circuit control: volt-free dry contact or 90-250V/10A alternate current or 0-30V/10A direct current
  • Mobil App – free iOS és Android mobil App: eWeLink
  • 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.


Product type:
smart RF + Zigbee relay, even for dry contact, smart WiFi relay, even for dry contact
without outer protective cover
Device power supply:
5V microUSB, 7-32V AC, 7-32V DC
5V microUSB power supply (not included), or 7V-32V DC/AC
DIN rail compatible:
Embedded relay:
Dimmer feature:
Power consumption metering:
Number of gangs / circuits:
Dry contact (voltage free) switching:
NO/NC switch:
Rated voltage (output):
dry contact, max. 250V AC, max 30V DC
Rated current (output):
10A per circuit
Number of phases:
Physical on/off button on device:
External switch supported:
Momentary switching (inching):
yes, by default it operates in momentary switch mode
Interlock mode:
Surge protection:
Overheat protection:
Wi-Fi standards:
802.11 b/g/n (2.4GHz)
RF transmitter / receiver:
Controllable from internet:
Manufacturer smartphone app:
yes, free app: eWeLink (Android, iOS)
Web admin interface:
on/off mode (only with subscription, Premium feature)
Voice control:
Amazon Alexa and Google Assistant compatible
Cloud mode:
yes, default mode is to connect to the eWeLink cloud
LAN mode:
yes, if the connection with the eWeLink cloud is disconnected, limited features
REST API support:
MQTT support:
Supported integrations:
Amazon Echo, Echo Dot, Amazon Tap, Google Home, Google Nest, IFTTT (IFTTT integration with subscription, Premium feature)
Schedulers, timers:
yes, 8 timings on the device in offline mode, any further timing can be run from the cloud in online mode
Notification functions:
eWeLink app notification on smartphone
yes: on/off history in the app
70 g/pcs
Package offers
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SmartWise 5V-32V 2-gang smart relay switch, with dry contact and momentary switch, eWeLink / Sonoff compatible, Wi-Fi
SmartWise 5V-32V 2-gang smart relay switch, with dry contact and momentary switch, eWeLink / Sonoff compatible, Wi-Fi