I have this meter and the tach fuction stopped working.Troubleshot that down to the inductive and sent that off to Blue Point/ UEI for repairs ans was told this is a Merc conceived inductive and something they ,the meter manufacturer knows nothing about.Fine.Paged through the manual provided by Merc with the meter and found a part # for that inductive tach pickup and ordered it.Got it today and it is entirely different than the previous pickup.It will not plug into the module and I am reluctant to remove it from the bag as it is then not returnable.Merc tech has so far been clueless.