You have one of those MDD (Wind Tunnel) or FW800 PowerMac. And sometime when you come back into your office with the machine running you can't help thinking "Wow, I always forget about it, but that thing is LOUD". Because it's true, we get used to the noise level when working. No longer! With the awesome Loudometer Technology? you can keep track as to how many decibels the fans of your machine blasts you with during the day, and night! Right, you will be able to run from the desk right before the fan kicks into "that" speed.
Mac OS X 10.2 or later, Mirror Drive Door (Wind Tunnel) or FW800 Power Mac G4.