Independently control 4 devices : Just need one Sonoff 4ch that can make you connect and control four home appliances and electronic devices independently. Smart remote control switch: You can check your home appliance status anytime & anywhere, and control them on/off with just a click on your smart phone or tablet via WiFi via APP eWeLink. It's no limit to the distance. Share control of devices to others: You can simply share control of your home appliances to others so that they can also turn on/off the devices remotely. Set time schedules for automatic control: It has single, repeating, and countdown timers that you can use to control home appliance on/off automatically. Sonoff 4CH is a 4-gang switch with din rail mounting. Sonoff 4CH 4 gang light switch supports to connect and control 4 electrical appliances, which can be turned on/off separately by the buttons or iOS/Android App EweLink. Besides, with the multi gang switch, you can check real-time devices status for each device on App. Owning a Sonoff 4CH multi gang switch means you have 4 Sonoff basic WiFi switches integrate together. The enclosure is din rail mount supported! A DIN rail is a metal rail of a standard type widely used for mounting circuit breakers and industrial control equipment inside equipment racks. These products are typically made from cold rolled carbon steel sheet with a zinc-plated or chromated bright surface finish. Sonoff 4CH 4 gang WiFi light switch belongs to Sonoff family, definitely, it bears all the functions basic Sonoff has. In EweLink, you can remote turn on/off from anywhere at any time, set single/repeat/countdown timing schedules to turn on/off at a specified time, share to others so that they can control together. Brand No Brand SKU OT776OT01F2QGNAFAMZ-54436