The WIFI Relay Module supports inching /self-locking mode. Users can add the device to the APP eWeLink to remote 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.
This product Compatible with Alexa.
The relays are switches without output, the power supply input (AC/DC) just for the PCBA
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
Reminder: Power Supply: DC 5V with Micro USB or hard wired 7-32V
Package included: 1 x Jog Inching Self-locking WiFi Wireless Smart Home Switch
1xEnglish Instruction

Voice control WIFI Switch Timer:

Works with Amazon Echo, Echo Dot, Amazon Tap
Works with Google Home, Google Nest
Works with IFTTT
Please note that only US/UK English and German voice commands are supported now.
with eWelink app(3.5.4 version),you can switch inching self-locking mode on your phone.