Nucpear Reactor heat display

So, I'm building a nuclear reactor security system with tekkit and because I'm not that good at coding I wanted to know how to make a heat display.
Like: there's a big monitor on the wall and the computer prints the reactor temperature on the monitor (I've got nuclear control heat sensors wired to a bundled cable) so it has to be a program wich prints something on a monitor when it gets a certain input from a colored wire.

I would take a look at the RS, Peripheral and Rednet APIs. From there it should be simple to figure it out. Just be sure to use os.pullEvent() if you are planning to only have it update if it gets a redstone signal.