I have the Horizon Instrument P-1000 Digital Tach in my coupe (approved
too)Really easy to install at mag switch and easy to view. Check it out.
I've used them for over 25 years. "I should have bought the company."
Additionally , it provides diagnostic and performance information about the
aircraft engine and ignition system not normally available with current
mechanical or electrical/electronic tachometers.
The P-1000 eliminates problems resulting from inaccurate tachometers: engine
operation outside of allowable RPM ranges, reduced engine life, reduced fuel
economy, reduced power or propeller over speeding -- all of which and result
in hazardous flying situations.
Prof. Ed
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