FL-1 Single Fuel Level

FL-1 Single Fuel Level


  • Non-Primary Replacement
  • 2 1/4″ Flush Mount
  • For Experimental A/C Only. Not STC’d/PMA’d/TSO’d. Digital Fuel Level.

SKU: FL-1 Category:

Stable Digital Fuel Level for Single Tanks

  • 210° graphical arc for quick reference of the tank fuel level.

Easy To Install & Versatile

  • The FL-1 fits into one of your existing 2 1/4″ holes.
  • Switch easily between Gallons, Liters and Pounds.

Accurate, Dependable & Easy To Use

  • Electronics International consistently has been a leader in digital engine instrumentation since 1979.

FL-1 Overview

The FL-1 offers pilots an accurate, stable digital fuel level for single tank configurations. Not only does the FL-1 display the tank level digitally, it also provides a 210° graphical arc for immediate, quick reference of the tank fuel level.

The FL-1 can be ordered to work with a resistive probe (FL-1R-12 or FL-1R-24, depending on 12 or 24 volts), a capacitive probe (FL-1CA) or a 0-5 volt output such as with some Skysports probes (FL-1V). Please be sure to specify which model you need when you order your FL-1.

The FL-1 is not STC’d for installation in a certified aircraft.


Fuel Slosh Stablization
When in flight, fuel will slosh around in the aircraft fuel tanks, creating irritating readings that constantly jump around. The FL-1 has a Fuel Slosh Stabilization calibration point that averages fuel level readings, creating a much more stable, but still extremely accurate fuel reading. Calibrate between a couple of seconds all the way up to over a minute of fuel slosh averaging.

9 Calibration Points
The FL-1 allows installers to program from as little as two all the way up to nine fuel level calibration points in the fuel tank. This flexibility eliminates inaccuracies due to non-linear fuel tanks.

Easy Programming Interface
The FL-1 is a simple instrument to install and program. Clear step-by-step instructions make programming the instrument easy to calibrate to your fuel tank senders.

Selectable Units
The pilot can easily select between displaying fuel level in Liters, Gallons or Lbs with a switch on the front of the instrument panel.

Retail Prices

Package includes:

  • FL-1 Instrument
  • Wire Harness
  • Operating & Installation Instructions
Description Package Retail Price
FL-1 Single Fuel Level Package FL-1RA-12, FL-1RA-24, FL-1CA, FL-1V $568
  • FL-1RA-12 : 12-Volt System
  • FL-1RA-24 : 24-Volt System
  • FL-1CA: Capacitive Probes
  • FL-1V: 0-5 Volt Output (Skysports Probes)

Available Options


2.5” x 2.5” x 3.65” Deep, 2 1/4” Flush Mount

Instrument: 11 oz
Fuel Flow Transducer: 6 oz

Power Requirements
7.5 to 35 Volts
Typical: 0.1 amps @ 12 Volts

Intensity Control
Independent control lines allow pilots to adjust the intensity of both the Green Indicator Lights and the LCD Backlight during instrument operations.


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