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Sonoff Basic (R2) WiFi smart relay switch

Sonoff’s entry level smart relay, remotely controllable via Internet and smartphone, WiFi-equipped, with timer function, 2200W (10A) peak output.

R3 is the 2019 version, comes with the same technical specification as R2, but in DIY mode supports integration with other smarthome systems via REST API.

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Factory SKU ID:
Supported protocols:
in stock (30+ pcs)

Sonoff Basic R2 is an entry level smart relay remotely controllable via Internet with timer function. Its R2 version is the classic and popular (previous) version of the product (without the DIY mode).

The device is a WiFi-equipped smart switch relay, that once wired to any circuit, you can turn ON / OFF any electric devices connected to the same wire. It supports smartphone remote control via iOS (Apple) or Android App, and comes with timer function (scheduled turn ON / OFF).

The device also has a physical button. Share smartphone remote control with your family. It is a perfect solution to smart-control any home appliances that is not neccesary to operate constantly, and have to turn ON / OFF periodically (e.g. aquarium air pump). By using the smart switch you can remotely turn ON any of your appliances even before you are at home, and you can conveniently set a scheduled turn OFF, to save energy and cost.

Sonoff Basic R2 is an entry level smart relay, its "premium" version, Sonoff TH10 has similar power output (2200W, 10A), but comes with a bigger and robust boxing, and unlike the Basic version TH10 has all the connection points on the same side.

If you need a triggered turn ON / OFF by temp-humidity, Sonoff TH10 or Sonoff TH16 is the perfect choice, this version does not support sensor pairing!

Product features:

  • Remote ON / OFF – Anytime, anywhere, from now on you can turn all your appliances on and off remotely
  • Mobil App support – Free iOS and 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

Product type:
smart WiFi relay
Device power supply:
110V-240V AC
230V AC (live and neutral)
DIN rail compatible:
yes, together with Sonoff DR adapter (not included)
Embedded relay:
Dimmer feature:
Power consumption metering:
Number of gangs / circuits:
Rated voltage (output):
100V-240V AC
Physical on/off button on device:
External switch supported:
2-way or 3-way switching:
Momentary switching (inching):
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:
default mode is connecting to the eWeLink cloud
LAN mode:
yes, if the connection with the eWeLink cloud is disconnected, limited features
REST API support:
yes, instead of eWeLink app and cloud it can communicate through REST API
MQTT support:
Supported integrations:
Amazon Echo, Echo Dot, Amazon Tap, Google Home, Google Nest, IFTTT (IFTTT integration with subscription, Premium feature), REST API
Schedulers, timers:
yes, 8 timings on the device in offline mode, (loop control supported), 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
60 g/pcs
Package offers
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