Works Great! Getting used to menu the more I fly — Nice addition to airplane.
FT-90 Fuel Flow Transducer
FAA Approved Instrument
- FAA TSO’d and STC’d with EI Instruments
- For 350 to 550 HP engines, or gravity-feed engines.
- Gold anodized aluminum body, 5.3 ounces.
- 1/4″ female NPT, 1.375 in. (H) x 1.620 in. (W) x 1.90 in. (L)
- 3 to 125+ GPH, .05 PSI drop at 20 GPH, .2 PSI drop at 40 GPH
Have a gravity fed engine?
Take a look at our FT-60, engineered for engines with an engine-driven fuel pump. See below for more details.
Questions?
8am–4:30pm PST M–F
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Product Overview
Model Comparison
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| Model | FT-60 | FT-90 | FT-180 |
| Engine Type | Up to 350 HP engines, engine driven fuel pumps only. | 350-550 HP engines, gravity fed engines. | 550 HP+ engines, engine driven fuel pumps only. |
| Fuel Flow | .6 to 70+ GPH | 2 to 125+ GPH | 2 to 250+ GPH |
| Connection | 1/4″ female NPT | 1/4″ female NPT | 1/4″ female NPT with #8 male flare adapters |
| Typical Use | Piston with Fuel Pump | Piston Gravity Fed | TurboProp |
| Specifications | Download Info Sheet | Download Info Sheet | Download Info Sheet |
Prices
Retail Prices
Packages include:
- FT-90 Transducer
- OLC-2 Connectors (3)
- Installation Instructions
Description
Package
Retail Price
FT-90 Fuel Flow Transducer
FT-90
$388

Specifications
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
Responsive customer service, kudos to [customer service].
- Customer
James A. From Alabama
- Aircraft
Cessna 182B Skylane
- EI Instrument
Much better quality with the bezel and buttons and knobs [vs. competition]. Also much easier to navigate and add fuel.
- Customer
Justin R. from Texas
- Aircraft
Cessna T207A Turbo Skywagon
- EI Instrument
Very complete and thorough packaging. Well-prepped wiring harnesses. Quick and efficient turnaround time. Great communication throughout the process.
- Customer
Parker C. From Georgia
- Aircraft
Beechcraft Bonanza J35
- EI Instrument
Great Service.
- Customer
Flying Academy from New York
- Aircraft
Piper PA-28-161 Warrior
- EI Instrument
Keep it up. I’ll keep coming back.
My mechanic said that your product was very good, and he was correct.
[Customer service] is great!
- Customer
Paul Z. from Oregon
- Aircraft
Cessna 182A Skylane
- EI Instrument
Straightforward installation instructions, great wiring harness. Quick answers from Tech Support.
Always a pleasure to do business with EI. Products ship rapidly. I have been using your products for 20+ years.
Beautiful graphic display, easy to use, perfect automatic dimming!
- Customer
Ryan G. from Washington
- Aircraft
Luscombe Model 8E Silvaire Deluxe
- EI Instrument
Gauge works great! Very happy with purchase.
- Customer
Aryan M. from California
- Aircraft
American Champion 8KCAB
- EI Instrument
