Eachen WiFi / RF 4 Channel Inching Relay Momentary/Self-Locking/Interlock Switch Module (ST-DC4)

Please note: The relays are switches without output, the power supply input (AC/DC) is just for the PCBA.

The product enables remote control of home appliances through the mobile application eWeLink, available on both Android and iOS.
Tap the work mode setting button manually, the product can change the working mode.
When in inching mode, you can have two wiring ways to select: -Turn on 1s and then auto-off -Turn off 1s and then auto-on.
When in self-locking mode, you can remotely turn on/off connected devices immediately.
When in interlock mode(only 2-gang and 4-gang supports), you can remotely control AC/DC motors.
5V-32V AC/DC

Supported functions include:

Remote turn on/off
Timing Schedules
Device Sharing
Group Management
Compatible with Amazon Echo, Echo Dot, Amazon Tap
Works with Google Home, Google Nest
Works with IFTTT

This product is compatible 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(channel name)}"
"Alexa, turn off {deviceName}"
"Alexa, schalte Ger?tename ein"
"Alexa, schalte Ger?tename aus"

Also, you can ask Google Home to control the device with the following voice commands:

"Hey, Google, turn on {deviceName}"
"OK, Google, turn off {deviceName(channel name)}"

How it works with IFTTT

Search "eWeLink Smart Home" in the IFTTT APP.