The Device
Patented Process Indicating Apparatus.
I'm seriously considering disunreconnecting one of these for blog traffic alerts.
In case you ever need one, here ya go.

The Device Patented Process Indicating Apparatus features two analog dials, a test tube that glows from dim to bright, and a red incandescent lamp. Each feature can be controlled independently, and conveys whatever information you assign to it.

http://www.processindicator.com/index.html