For three decades, SLI has been the tachometer of choice by most OEM’s for precision and reliability.  Now TGH Aviation is proud to offer these precision tachometers for aftermarket replacement of most single engine aircraft types. If that shaky needle, or inaccurate reading has you questioning your RPM's, it time to replace it with a quality SLI tachometer.

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

• Lighting: 14 volt with HEA glass (non-glare)

• Mfg. Warranty: 2 Years

• FAA TSO C49b & SAE AS 404B