Sonoff POW (R2) WiFi smart relay switch, with power meter and overload protection

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WiFi-equipped, remotely controllable via Internet, smart timer switch relay, power metering and overload-protection functions. New, R2 version.

SKU: SON-REL-POW-R2 Category:
EAN: 6920075733259


Sonoff POW is a smart switch relay, R2 is the latest version, introduced in 2018. POW is a 15A, WiFi-equipped smart switch relay, with power meter, temp and humidity sensor pairing is NOT supported. POW R2 features a built-in overload-protection, protects the connected device.

Wired to an electric cable you can close or break the circuit thus turning ON / OFF the device connected to the same electric cabel.The smart relay is remotely controllable via Internet and iOS (Apple) or Android smartphone App, and you can set scheduled turning ON / OFF. The device has a physical button too. Share remote control in the App with your family. Ideal solution to smart control home appliances, that don’t need to operate all the time and can be turned ON / OFF periodically (e.g. aquarium air pump). By using the smart switch relay 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.

Features real-time power metering, daily and monthly statistics are displayed in the mobile app. New R2 version supports downloading the consumption data to your smartphone. The smart switch relay provides help not only in remote and scheduled turning ON / OFF ideal solution to understand and optimize your power consumption too.

New Sonoff POW R2 version features compared to former POW version:

  • higher accuracy in metering,
  • meters not only actual consumption, but also actual voltage and amperage data is displayed,
  • overload protection setting available (supports setting the relevant paramters),
  • historic consumption data export is supported to smartphone from eWeLink cloud

Product features:

  • Remote ON / OFF – Anytime, anywhere, from now on you can turn all your appliances on and off remotely.
  • 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
  • Real-time power metering – displays actual consumption in App
  • Period consumption metering – stop-watch metering function, consumption is metered from start to stop
  • Power consumption statistics – daily and monthly total consumption statistics displayed in the App (monthly periods, over last 100 days)


New Sonoff POW R2: more accurate metering, more functions:

Additional information

Weight 0.091 kg
Dimensions 11.4 × 5.2 × 3.2 cm
Product type

power meter, smart relay



Number of electric gangs controlled


Momentary switch (Inching)


Physical switch


DIN rail compatible

yes, with Sonoff DR adapter (not included)



433MHz RF remote controllable


Remotely controllable via internet


Voice control

Amazon Alexa and Google Assistant compatible

Power meter


Schedulers, timers

yes (single, schedule, timer/countdown, loop)

Smartphone app

yes, free app: eWeLink (Android, iOS)


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


90-250V AC, compatible with Hungarian 230V

Maximum power output

3500W (15A)

WiFi wireless standard

802.11 b/g/n (2.4GHz)

WiFi security mechanism


Operating temperature range

0-40 ℃

Supported humidity range


Brand / Manufacturer



CE and RoHS certificates:



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