ELING Waterproof Tachometer 0 3000RPM Backlight Review

After trying this tachometer, I am impressed with its accuracy and easy installation. The backlight feature makes it easy to read even at night. It's a perfect addition to my car for better automotive performance. However, the wires could use some extending for multiple installation options.

I've been suffering with this wheelbarrow for a month - it still shows intermittent highs. Just too sensitive to coil noise. I tried resistors in the signal line - experimented - calmed down but didn't cure. 2 different speedometer signal filters - no improvement. I finally found a Schmidt-triggered device that converts the coil signal to a square wave - mostly read correctly, but then jumped back up :( I ended up buying a much more expensive Touch - it worked right out of the box.

I've been fiddling with this touch for a month - it still shows intermittent highs. Just too sensitive to coil noise. I tried resistors in the signal line - experimented - calmed down but didn't cure. Tried 2 different speedometer signal filters - no improvement. I ended up finding a Schmidt trigger that converted the coil signal to a square wave - read correctly in most cases, but then just jumped back up :( I ended up buying a much more expensive Touch - it worked right out of the box.