I have had the same Bel RX65 for nearly a decade now. I normally would get a new one every three years.
This one is just too damn good, too damn accurate.
'98 Dinan/RMS stage 2+(VAC cams, CES Cutring etc)
'15 Buick Regal "T"(wife)
'06 Saab 9-5 Combi 5mt (full suspension, LSD, clipped turbo etc)