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Old 06-26-2009, 11:15 AM   #4 (permalink)
apk919
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Join Date: Oct 2007
Location: Limbo
Posts: 6,281
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I've used this: GTech-Pro Model RR

In fact, here's some data that I posted from a track session: Big Willow with SpeedVentures, Feb. 8 2009

It's a nice little unit, but there were three problems I had with it:

1) The mounting bracket is a bit flimsy... the ball and socket came apart and had to be glued back together.
2) The LCD display is impossible to read with polarized sunglasses.
3) The RPM data was sometimes spotty... i.e. dropouts in the data
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