Long story in short, it's a 5V wifi inching/selflock relay module by SONOFF.

Just like a standard SONOFF switch, you can use it to work with eWelink app, Amazon Alexa, Google Home, IFTTT..etc.

The 5VDC input, nano size and dry-contact output makes it different from traditional SONOFF product, this product is a wireless switch supports inching /self-locking mode. Users can add the device to the APP eWeLink in order to remotely control connected home appliances or devices. In self-locking mode, customers can remotely turn on/off connected devices immediately. When in inching mode, customers can have two wiring ways to select: 

Turn on 1s and then auto-off

Turn off 1s and then auto-on.

The product enables remote control of home appliances through the mobile application eWeLink, available on both Android and iOS. Supported functions include:

Remote turn on/off

Timing Schedules

Device Sharing

Group Management

Works with Amazon Echo, Echo Dot, Amazon Tap

Works with Google Home, Google Nest

Works with IFTTT

Works With Amazon Alexa

This product works with Amazon Alexa. You can ask Alexa to control the device with the following voice commands. Please note that only US/UK English and German voice commands are supported now.

Try out these phrases ( {deviceName} should be the name of your device):

Alexa, turn on {deviceName}

Alexa, turn off {deviceName}

Alexa, turn {deviceName} off

Alexa, turn {deviceName} on

Alexa, schalte Gerätename ein

Alexa, schalte Gerätename aus

There are two working modes for the product: inching mode and self-locking mode. Users can press the self-lock/inching mode button to switch between these two modes.

When the module is switched to self-locking mode, users can turn on/off the connected appliance instantly. When the module is switched to inching mode, users can press on/off toggle button to turn on or off connected device.

Features

Supports status tracking: device status is timely provided to eWeLink.

Supports max 8 enabled scheduled/countdown/loop timers.

Dry Contact Output 

Low Power Supply - 5VDC low voltage input 

LAN Control – Turn on/off the device even when WiFi has no Internet access 

App Support – Free iOS and Android mobile App eWeLink 

Remote ON/OFF–Turn electrical devices on/off from anywhere 

Sync Status–Real-time device status provided to App 

Timing–Set scheduled/countdown timers to turn on/off at specified time 

Share Control– Control your smart home 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 conditions from sensor 

Specifications:

Power Supply: 5V DC

Dry contact output 

Max Current: 10A

Humidity: 5%-90%RH, Non-condensing

Operating Temperature: 0ºC-40ºC(32°F-104°F)

Nano size: 34.5*25*19mm

Package Included:

1*SONOFF RE5V1C - 5V Selflock Relay Modul

 

If you need many, please contact us.