Yeah, what do you need alla them geegaws for when you can just ask Zack? He can stick his probe in there and tell you whether the fan is spinning and how hot is is. Indeed, he might even be able to guess on use, based on the vibes. You could probably calibrate that last one to some kind of protractor, a la Stuka side glass.
Me, I don't need to go to some fancy instrumentation-based site to get a readout on whether ma nutz itch. I just scratches 'em.
Seriously, Bald, your project sounds worthwhile and is just the kind of thing that seems cool to just about any techno geek, myself included. I just could not resist the absurdity of this thread.