HF alert: digital tach for $30

[Buggsy2]

Just saw in the latest Harbor Freight paper catalog that they're offering a digital, photosensitive tachometer for $29.99. Cheap way to measure that prop rpm.

 

[Greg Arehart]

If it's the Centech one on their website, according to the specs, you have to be within 8 inches of the rotating blades - too close for my comfort. Is there another one that I'm missing?

greg