andrew66 said: i just bought a tach from princess auto today. they had one on sale for $20, so i couldnt pass it up. i think that this type will be more accurate, cause i need to attach reflective tape to the prop. It says that the readings are +- 1 rpm and the max range is 8 meters.
Wow.... +-1rpm! I never see a digit in the "ones" column on my tach. How is this tach different from the ones we buy from the hobby store that would make it more accurate?
diceco