R-1-N2 (NP) RPM Turboprop Gauge

TSO’d. Displays an accurate N2 RPM measurement in digital and analog format


R-1-N2 Overview

The R-1-N2 displays an accurate N2 RPM measurement in digital and analog format. Proprietary algorithms ensure that the RPM reading is rock solid when the engine settings are stable, but with the slightest touch of the controls, the R-1-N2 Tachometer will respond with lightening quick rapidity. There is simply not a finer tachometer available, hands down.


R-1-N2 Specifications

Size (H x W x D)

2.5″ x 2.5″ x 3.65,” with a 2.25″ Bezel

Weight – Instrument

7 oz.


Connects to Tach Gen (specific wiring dependent on which Tach Gen your aircraft has installed).

Power Requirements

7.5 to 30 Volts, 1/10 Amp


Viewable in direct sunlight, with dimmable 12 and 24 volt backlight control lines.




Stable, 10 RPM Resolution with quick response to engine changes.

Intensity Control

An intensity control line allows you to control the Backlight intensity.

210 Degree Arc

The R-1-N2 displays N2 RPM in a 210 Degree graphical LED arc for immediate reference. Red and Yellow LED’s highlight cautionary and restricted operating ranges.

Tach Time

The R-1-N2 keeps track of Tach Time on your engine, to .1 hours.

Flight Timer

Flight Time is recorded from takeoff to landing.

Peak RPM

For every flight, Peak RPM is stored. Simply press the “Pk” button to see the previous flight’s Peak RPM


R1-N2 Kit Details

Kit Includes

Instrument, Wire Harness, Installation and Operating Instructions.


Custom – Allow 2-3 business days to process and build your custom order



Optional – $12

A-102 (3 1/8″ to 2 1/4″ Adaptor Plate)