Sales reps have been very friendly and helpful.
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

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Testimonials
Customer Testimonials
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Kevin D. from Missouri
- Aircraft
Cessna 172 Skyhawk
- EI Instrument
Installation was straightforward; great quality all around.
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Christopher L. from California
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C182 A
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Electronics International is an exceptional company with exceptional products… Oregon company, great products and great people.
EI’s team is great; you guys are the best.
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Brian N. from Arizona
- Aircraft
Piper PA28RT 201T
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Very affordable… great installation instructions. [I chose EI because of its] price point, certified primary.
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Benjamin T. from South Carolina
- Aircraft
Piper PA-28-181 Archer II
- EI Instrument
EI representatives… have been very helpful, truthful, and knowledgeable… We had no idea, that a few weeks later [after our purchase], we would need to have a Top Overhaul. What great timing! Having your engine monitor installed in our plane will hopefully help us keep it out of the shop for further engine repairs.
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Phillip B. From Oklahoma
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Cessna 210N Centurion / Turbo Centurion
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Love the situational awareness that the CGR-30 Combo gives me. Easy to read and understand displayed information.
Works Great!
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Charlie M. From Texas
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American Champion 8KCAB Decathlon
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Customer support is great (and the) user interface is superior to other products.
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Earl L. from Idaho
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Cessna 170B
- EI Instrument
Easy install, good product. [I chose EI because of my] experience with [the] product.
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Dave S. from Missouri
- Aircraft
Beechcraft Bonanza Model 35
- EI Instrument
I have seen your products in other aircraft and have seen their reliability.
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Juan P. from British Columbia, Canada
- Aircraft
Cessna 172M Skyhawk
- EI Instrument
