The OPT-1 is more readable than the factory Cessna oil pressure/temp gauges.
- Customer
Daniel N. From California
- Aircraft
Cessna 175 Skylark
- EI Instrument
Take a look at our FT-60, engineered for engines with an engine-driven fuel pump. See below for more details.
8am–4:30pm PST M–F
Sorry, We’re Closed
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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 |
FT-90 Fuel Flow Transducer
FT-90
$388

The OPT-1 is more readable than the factory Cessna oil pressure/temp gauges.
Customer Service is far superior… with an excellent record of resolving … technical issues.
I have seen your products in other aircraft and have seen their reliability.
This is the second product purchased and I am completely satisfied.
Much better quality with the bezel and buttons and knobs [vs. competition]. Also much easier to navigate and add fuel.
Excellent installation instructions [&] recommend[ed] by others.
Great customer service!
My mechanic said that your product was very good, and he was correct.
I have never had an issue with any EI products… it looks fantastic on the panel.
A clear capable replacement for a cluster gauge. Vivid colors used which make it easy to see engine status at a glance.
[Customer service] is great!
We liked the price and the reputation of your company.