ControlByWeb™ Ethernet I/O products provide an easy and reliable way to monitor and control devices over a network. Every product is designed for simplicity and rock-solid performance, making remote relay control straight-forward and dependable. All of our products have built-in web servers, allowing them to be accessed by a standard web-browser. There is no special software or app to download or buy, no drivers to install, no batteries to change, and no monthly subscription. Whatever your control or data acquisition needs may be, ControlByWeb makes it simple!