Owning a Sonoff 4CH means you have 4 Sonoff basic WiFi switches integrate together.
The enclosure supports din-rail mount!
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. Document link: https://drive.google.com/open?id=0B4XvqQlEcMDQZHIxaWJmOWljZ2s
What You Get: 1 X DIYmall Sonoff 4CH Din Rail Mounting WiFI Switch. Our 1 Year Worry-Free Warranty time and friendly customer service.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.76 inch
Height : 1.18 inch
Length : 2.76 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 1.44 ounce (View shipping rates and policies)

ASIN : B074R9XRG9