SONOFF Wi-Fi Smart Plug

User Manual V1.0

The SONOFF iPlug series is a “Safe and Reliable” Wi-Fi Smart Plug with the key features of remote control, power monitoring, voice command control, etc. You are able to check the daily/monthly power consumption through the eWeLink APP energy dashboard. Home automation can be achieved by the configuration of smart scenes, timers, schedules, etc.

Remote Control

Power Monitoring


Device Share

AI Voice Control

Inching Mode

Smart Scene

Over-load Protection

Note: Power monitoring and overload protection are only available for Model S40TPB.

ON/OFF Button


Wi-Fi indicator(Blue),ON/OFF indicator(Red)

Compatible AI Voice

S40TPB/S40TPB Lite




120V~ 60Hz

Max. Load


Wireless Connectivity

Wi-Fi IEEE 802.11 b/g/n 2.4GHz

Net Weight






Casing Material


Applicable Place


Working Temperature


Working Humidity

5%~95% RH, non-condensing

Certified Compliance


Download the“eWeLink”App

Please download the “eWeLink” App from Google Play Store or Apple App Store.

Add a Device

Enter“Scan QR code”

Scan the QR code of the device

Select“Add Device”

Plug in your device

Long press the button for 5 seconds

Check the indicator flashing status

Turn on the “Bluetooth” of your phone and connect the device

Choose a “Wi-Fi” network and enter the password

Wait until the pairing is completed

Certified for Humans
What’s Certified For Humans

It’s smart home, made easy. We hear you—adding voice-activated smart devices to your home can seem daunting. Certified for Humans devices meet our criteria for being surprisingly simple to use.

How do I set up my device?

1. Install your new smart home device, then power up an Alexa-enabled device like the Echo or Echo Dot, or your Alexa App.

2. Say, “Alexa, discover devices.”

3. Follow the prompts and you’ll be using your voice to run your home in no time. Or go to your Alexa mobile app and follow the new device setup instructions.

Note: This feature is only available in the case that you purchase the product from, as well as the account you use to purchase this device from the official Amazon website (, is the same as the account you sign in to the smart speaker with the Certified for Humans badge.