The older EI ultimate engine analyzer that came with my plane that I bought 7 years ago has always worked flawlessly.
EDC-33P Engine Data Converter
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Product Overview
EDC-33 Overview

The EDC-33 (Engine Data Converter) is sometimes referred to as a Data Acquisition Unit (DAU) and has a broad range of applications. Its main purpose is to monitor the probes, transducers and sensors mounted on the engine and airframe. It then processes this data and outputs it on a serial bus. This allows a Display Unit or MFD to display the data without having to perform the intense processing required in a set timeframe.Also, annunciators and status switches can be monitored.
The EDC-33 Engine Data Converter can be used on piston, turboprop or jet aircraft as well as helicopters. If an EEC or FADC system needs to be monitored, check out our BC-5 (Bus Converter).
Functions Available
Ng | Strain | Tail Rotor | Gear Box Temp |
Np | Oxygen | Super Heat | Landing Gear |
ITT | Cabin Alt | EGT | Annunciators |
Torque | Cabin Diff Pressure | CGT | Throttle |
G-Sensor | Main Rotor | Angle of Attack | Amps |
Vibration | Frequency | Flap Position | IAT |
Oil Temp | Boom Pressure | RPM | Hydraulic Pressure |
Elevator Trim | Aileron Trim | Rudder Trim | TIT |
Yoke Position | Carb Temp | Fuel Level | Oil Pressure |
Manifold Pressure | Vacuum | Fuel Flow | CHT |
DC Volts | OAT | Fuel Pressure | Various Switch Positions |
AC Volts | Many Others, Contact EI |
Smart Conversions
Processed and Calibrated Data Out
- Analog and pulse signals are received and processed using an array of algorithms that massage the data into readable engineering units.
- The EDC can provide simple linear conversions or mapped linearization for non-linear inputs or complex calculations.
- Processed data is output via a number of serial protocols.
- A receiving display unit only has to display the processed data as it is received.
Optimal Solution for Custom Monitoring Applications
- Bluetooth capable for wireless in-field calibration.
- The formatted data provides an easy integration to any display head without further processing.
Contact Us
Bring Us Your Project
For more information on how the EDC-33 Engine Data Converter can help you, contact us by phone at (541) 318-6060 or by email at Support@iFlyEi.com.

Prices
Specifications
Specifications
Dimensions
5.85″ L x 3.71″ W x 2.35″ H
Weight
1.0 Lb
Power Requirements
7.5 to 50 Volts
Typical: 0.1 amps @ 12 Volts
Certifications
FAA TSO’d to DO-160G & DO-178 Level C
Typical Input Configurations
- Model EDC-33P:Â 1-Volt Channel, 1-Amp Channel, 1-Fuel Flow Channel, 6-Pressure Channels, 17-Temp Channels, 4-Resistive Fuel Level Channels, 4-Capacitive Fuel Level Channels and 2-RPM Channels.
- Model EDC-33T-XX: 1-Volt Channel, 1-Amp Channel, 1-Fuel Flow Channel, 9-Pressure Channels, 13-Temp Channels, 4-Resistive Fuel Level Channels or 4-Capacitive Fuel Level Channels and 2-RPM Channels.
Note: For both models, Temp, Fuel Level and Pressure channels can be used instead to monitor other functions or annunciators.

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Testimonials
Customer Testimonials
I have used your products in every airplane that I have owned over the years and have never had a problem. Thank You
- Customer
Gregory V. from New Hampshire
- Aircraft
Cessna A185F Skywagon and AgCarryall
- EI Instrument
This is the third EI instrument I am having installed in “Lillybelle .” I am impressed with the ease of operation, the affordability and the accuracy of each of these instruments. For years I trusted my life to 50+ year old gauges. Now I don’t have to. What a relief!
- Customer
Charles M. from South Dakota
- Aircraft
Cessna 150F
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Beautiful graphic display, easy to use, perfect automatic dimming!
- Customer
Ryan G. from Washington
- Aircraft
Luscombe Model 8E Silvaire Deluxe
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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.
- Customer
Phillip B. From Oklahoma
- Aircraft
Cessna 210N Centurion / Turbo Centurion
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Your company shares a good reputation!
Great service. [I replaced/upgraded] unit in aircraft.
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Adam M. from NSW, Australia
- Aircraft
Piper PA-28-181 Cherokee
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Great… price [&] support
- Customer
Harry V.D.H. from New Zealand
- Aircraft
Piper PA-28R-200 Arrow II
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The tach looks and operates amazing. Extremely accurate.
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
I have worked with and installed a few of your competitors’ and your systems. EI instruments’ ease of use and installation make these systems my go-to choice and number one recommendation to customers.
I really enjoy your products [because they are] simple and easy to use and affordable.
- Customer
Zach J. from Alaska
- Aircraft
Piper PA-16 Clipper
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