2 of 2 people found the following review helpful
DUSIEC Digital Photo Laser Tachometer Non Contact Tach/Portable Digtal LCD... DUSIEC,
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This review is from: DUSIEC Digital Photo Laser Tachometer Non Contact Tach/Portable Digtal LCD Photo Photograp (Automotive)
Bought this for measuring the tip speed of a low voltage, solar powered fan and it seems to work just fine. I like the "memory hold " feature which recalls the last rpm value . I cannot comment on the accuracy of the tacho. but for my comparative purposes, it is just fine.
The tacho. comes with a carrying case, a set of instructions and some reflective adhesive tape. You are advised to stick a small piece of the tape on a rotating shaft to act as an indicator.
Very pleased with purchase.