For Sale: RPM Pickup for JPI Engine Monitors. I had this installed in my M20J until 2015, when I replaced my engine from the IO360-A3B6D (i.e. Bendix Dual Mag) to the IO360-A3B6 (i.e. conventional Slick mags). I posted about the experience in this thread: http://mooneyspace.com/topic/15898-m20j-io-360-a3b6-conversion-experience/#comment-221002
The sensor worked with both my EDM-730 and EDM-830 engine monitors.The attached photos show both the unit itself and a picture of it installed on my plane. It's just a loop of metal with wires on it--hardly makes a difference whether it is "new" or "used." But of course I will honor returns if for some reason it doesn't work for you (you pick up return shipping cost).
The attached graphic shows a screen-grab from the JPI website, and an excerpt from the installation manual. You can see that the new unit goes for $395. (!!!) I am selling this unit for $200 + UPS ground shipping.
If interested, please email directly at dhc@jpl.nasa.gov
Dan