2 1/4″ Diamond Mechanical Tachometer by Superior Labs
Green ARC: 700-2800, Red Line: 2800
Replaces Diamond DA20, G500 Models; Mitchell D1-112-5223
Since 1977, Superior Labs (SLI) has been the aircraft tachometer of choice by most OEM’s for precision and reliability. Now SLI is proud to offer these precision aircraft tachometers for aftermarket replacement of most single engine aircraft. If that shaky tachometer needle, or inaccurate tachometer reading has you questioning your RPM’s, it’s time to replace it with a precision SLI tachometer.

SLI manufactures aircraft tachometers for all general aviation aircraft types and offers custom screen printed dials, internal lighting, anti-glare glass, and pre-set engine hours. Chief Aircraft currently stocks a wide range of aircraft tachometers for the following aircraft:

Cessna
Piper
Mooney
Diamond
Beech
American Champion
Superior Labs is currently FAA approved and holds the latest revision on TSO C49b for the Mechanical Recording Aircraft Tachometer.

* Note: SLI #’s ending in H05 are lit tachs and have the following specs.:
HEA GLASS, 14V, BLACK AND WHITE WIRE, PINS AND CONS CONNECTOR