WebRelay is an electrical relay (or electrical switch) with a built-in web server. The relay can be turned on, off, or pulsed from this driver. The WebRelay has a long history of reliable operation in many applications including remote reboot, industrial control, security, and remote control and monitoring.
This works great with the Control4 MDU solution to open and sense a main gate or door of a complex.
This driver is specifically for Single Relay & Contact Unit. Model numbers starting with X-WR-1R12 (https://www.controlbyweb.com/webrelay/)