Why not just get an hourmeter... The Sendec ones are about $35 and do both tachometer and hourmeter functions, as well as flash at the 25 and 100 hour intervals.
LINK
Takes about five minutes to install one.
__________________
Sailingdog
Telstar 28
New England
You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
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