Sonoff 4CH Pro - 4 Gang Inching/Self-Locking/Interlock WiFi RF Smart Switch For DIY Smart Home，Works With Alexa<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Independently control 4 devices : It is the new 4-channel design which can make you remotely turn on/off 4 home appliances independently.</li><li>3 powerful working modes : Turn on/off the 4 connected devices separately in self-locking mode. Turn on 1 device but turn off other 3 devices at the same time in interlock mode. Turn on the connected devices but automatically switch off after 0.25-4s later in inching mode.</li><li>2 remote control methods for your choose : you can turn on/off the connected lights/appliances via WiFi or 433MHz RF Remote control.</li><li>Set 8 time schedules for automatic control: It can create 8 enabled single/repeat/ countdown timers to automatically turn on/off devices at the specified time. And the timers can run themselves even the network is unavailable.</li><li>Works with Alexa: Link "eWeLink Smart Home Fan" skill. You can directly ask Amazon Echo/Echo Dot/Amazon Tap to turn on/off your Sonoff devices.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41iXjXrYneL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/510VkDn9kRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51UxRwSHAiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41JLS8CwrZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51RHO2CBm8L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41oE7l04g-L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51WIsMEaUFL.jpg" noproxy>