Makes Up For It With Enthusiasm
As the title says - anyone have recs for a remote tachometer I can use to verify my tach readings? Looking on Amazon they seem to range from $20-200 and I'm not sure what I'm looking at, to be honest.
Can you provide the name of the app? IPhone or Android? It sounds interesting.I replaced the tach on my Yanmar 3GM30F a few weeks ago. The old OEM tach used a magnetic sender on the transmission bell housing. The new tach runs off the Balmar alternator I installed a few years ago. Not having a digital tachometer handy once I had everything installed, I was curious to see if there’s any apps that could help me at least get in the ballpark with calibration of the tach. To my surprise, there’s a few apps - some work using the phone’s light and camera, others use the microphone and an algorithm to analyze the engine sound patterns at idle. Out of curiosity, I tried the latter. It came in at 860 rpms, in the range specified by the manual. So I set the tach to that. Then increased to 2500 rpms. The app detected the change and matched to within 5-10 rpms. I’ll probably still get something more accurate later, but it’s good enough for now to get me out sailing.
At $22 and over 350 reviews with 4.5 stars on Amazon the Neiko 20713A Digital Tachometer seems like a good purchase. I’ve also been looking for an inexpensive hand held tach for my boat.I have had very good experiences with the Neiko 20713A Digital Tachometer. I tested it on various things off the boat with a known RPM and it was accurate. It is very easy to use, and reports a minimum, maximum, and mean for the period of time that you point it at the rotating shiny thing and hold the button. My experienced local diesel mechanic was initially suspicious of the ~$20 Neiko until I used it to demonstrate that the tachometer his technician had been using to test my driveshaft RPMs was inaccurate.
Neiko 20713A Digital Tachometer, Non Contact Laser Photo | 2.5 - 99, 999 RPM Accuracy | Batteries Included (Renewed): Amazon.com: Industrial & ScientificNeiko 20713A Digital Tachometer, Non Contact Laser Photo | 2.5 - 99, 999 RPM Accuracy | Batteries Included (Renewed): Amazon.com: Industrial & Scientificwww.amazon.com