This is a SONOFF BASIC R3 Smart ON/OFF WiFi Switch, Light Timer Support APP/LAN/Voice Remote Control. Amazingly, it has a DIY mode that is the firmware can be user-defined. Built-in a web server that exposes the REST-AP, which allows connecting the switch with the existing home automation system.

Along with support for smart scenes, just set a device to turn on/off to make another or a boatload of devices turn on/off. The LAN control is designed for situations in which no available Wi-Fi connection, or an unsteady Wi-Fi network environment. . Amazingly, the module with unique DIY function, the way you can assemble it with your appliances to turn them into intelligence.

Features:

1.  Free iOS and Android mobile App eWeLink.
2.  Real-time device status provided to App.
3.  Set scheduled/countdown/loop timers to turn on/off at the specified time.
4.  Control your smart home together with your family.
5.  Turn on/off a gang of devices with one tap.

Package includes:

1 x SONOFF BASIC R3 Smart ON/OFF WiFi Switch, Light Timer Support APP/LAN/Voice Remote Control