Suggestions for showing instant updates of db tables on a chart using asp.net mvc

Question

I am planning to develop a web app that will show conditions of environments. My service reads from sensors and writes them in a database. Service reads at a 1-minute interval. Whenever a value change happens I will show it on a chart in an ASP.NET MVC app.

Any suggestions for a library or a design pattern will be appreciated. I searched online and SignalR may be used for this, however it seems like a little bit complicated.