I am still looking for good used IRD 198F Lasetach laser tachometers. These were originally developed/sold by TEC (Technology for Enercy Corp.) and are the rectangular, stand alone (battery powered) units. Turn your unused equipment into cash. I am not reselling these -- just need a "spare" or two.

Contact me at: precisn@suddenlink.net

Still in the market if you have one that's gathering dust.....

Rusty; I think the TEC unit was a Monarch 300 - old type. I don't think TEC ever made their own so you may want to try other OEM's.