Posted by speedswitch.com on April 23, 1999 at 21:22:10:

We manufacture electronic and mechanical
zero-speed switches. These devices are shaft
driven and can indicate or control the rotary
motion of the equipment they are attached to.
Our zero-speed switches are widely used as
interlocks on conveyor systems of all types.
Our switches have been recognized in the material
handling industry for over 48 years!

Please visit our website at http://www.speedswitch.com