WTB RPM gauge by Horizon Instrument Company
My electronic digital RPM gauge which includes in the display a left and right mag signal lost warning (mag check) indication failed. The company is still in business but no longer supports the instrument. It matches all my other gauges on the panel so I am trying to find a serviceable gauge to replace it.
Paid for 2018 and well worth it!
Best investment I make all year....
US Army 1st Cavalry Division
LAPD helicopter pilot, retired