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Laser tachometer? #5356458 02/21/20 12:13 PM
Joined: May 2018
Posts: 304
Elkins45 Offline OP
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Joined: May 2018
Posts: 304
I need to verify the accuracy of the tachometer on my boat engine. I know that there are cheap tachometers for small engines that use a wire to count spark impulses, but I also saw one that uses a laser. I presume you shine to at the flywheel or something like that? Has anyone used one and is it a better solution than a cheap hour meter/tach combo?

Re: Laser tachometer? [Re: Elkins45] #5356790 02/21/20 08:42 PM
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cronk Offline
Joined: Jan 2009
Posts: 1,563
I have one I bought from Harbor Freight. It comes with a strip of reflective tape you just cut off a small piece and stick it to a flywheel, pulley etc. Point the laser at it, and it displays the rpm on a digital display.
Mine has worked great, use it on small engines to set the governed speed to 3600 rpm.

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Re: Laser tachometer? [Re: Elkins45] #5356877 02/21/20 10:43 PM
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joegreen Offline
Joined: Mar 2013
Posts: 1,235
Yeah I have one of those laser ones from Amazon and it is fantastic. It's so easy and much safer around spinning parts

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