Great service. [I replaced/upgraded] unit in aircraft.
- Customer
Adam M. from NSW, Australia
- Aircraft
Piper PA-28-181 Cherokee
- EI Instrument
TR-1-NP RPM Instrument
FAA Approved Instrument
- FAA TSO’d
- Upgrade your aircraft panel with the best turboprop replacement instruments available.
Easy To Install
- TR-1 instruments fit into your existing 2″ hole.
Accurate, Dependable & Reliable
- Electronics International consistently has been a leader in digital engine instrumentation since 1979.
Available Data Recording of Every Flight
- 1,000 hours at 1 second per record for trend analysis and to log limits which have been exceeded.
Questions?
8am–4:30pm PST M–F
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Product Overview
TR-1 Features
Our TR-1 provides exceptional performance, reliability and features. If you need to replace or overhaul an old failing instrument, consider buying one of our TR-1s from a company which has been designing quality aircraft instrumentation for over 40 years. Purchasing our TR-1 is substantially less expensive than overhauling or replacing your old needle gauge. We’re able to make this offer with a money-back guarantee because we’re confident you’ll love the performance, reliability and features these instruments offer.
- Standard two-inch round (MS28042-1A mount), 4.23″ long.
- Rugged and reliable design (unlike many old needle gauges).
- Optional RS-232 input and output port to interface with EEC’s, FADEC’s and other devices.
- Custom calibration (mapping) for unparalleled accuracy.
- Optional two open-collector (pull-down) for controlling external warning lights or props (0.1 Amps max).
- Optional ARINC 429 compatible via the BC-5 (contact EI Support for details).
- Available Bluetooth connectivity, great for remote fleet calibration and data downloads.
Additional TR-1 Models Include:
| Amps | AOA | Bleed Air Temp | Cabin Pressure |
| Diff Air Pressure | EGT | EPR | Fuel Flow* |
| Fuel Level | Fuel Pressure | Hyd | ITT* |
| NG/N1* | NP/N2* | O2 Pressure | OAT |
| Oil Pressure | Oil Temp | TAT | TGT |
| Torque* | TOT | Volts | And More! |
* See Product Page
Prices
TR-1 Options and Retail Prices
We offer one package option for our TR-1 instruments: Premium. The Premium TR-1 package is targeted for customers that need to minimize AOG time.
TR-1-NP-P Premium Package
- 3 year warranty.
- No Risk, three month money-back guarantee.
- 1,000+ hours of recording at 1/3 second per record.
- Priority service on warranties and orders.
- Free overnight shipping on warranties and orders (USA only).
- Warranties will be handled by providing an exchange unit.
- Spare printed faceplates with your aircraft’s markings will be held in stock.
- Spare blank units (without faceplates) will be held in stock.
- 8130-3 airworthiness approval tag provided.
- Exchange the unit(s) for an MVP-50T within one year and get full credit on TR-1s purchased.
$2,400 Retail
TR-1-NP Additional Option
Bluetooth Field Calibration Device [FCD-TR-1] (add $600)
Description
Package
Retail Price
Current Mail-in Rebate Happening!
$300 Rebate for the TR-1 Premium Packages
Specifications
TR-1 Specifications
Dimensions
2″ standard round, 4.23″ long
Weight
0.3 Pounds (Instrument Only)
Power Requirements
6 to 55 Volts
Typical: 0.075 amps @ 28 Volts
Dimming
Auto (electric eye) and Manual
Environmental
DO-160G
Internal Storage
1,000 hours, RS232 port
Certifications
FAA TSO’d -C43c, -C44c, -C45b, -C47a, -49b, -C55a
Videos
Product Videos
TR-1 Turboprop Instruments Overview
Documents
Documents & Manuals
Testimonials
Customer Testimonials
Incredible customer service.
After a full IFR install on my Cessna 175, my two favorite instruments without question is the CGR-30 Combo set. Simple and customizable, the data is invaluable!
Easy installation.
Haven’t used it yet, but we are excited to & Love the way it looks!!
- Customer
Larry A . From Idaho
- Aircraft
Piper PA-28R-200 Arrow
- EI Instrument
. . . more functionality, easier install, and folks at Gulfcoast said your customer service is outstanding.
- Customer
John G. from FL
- Aircraft
PA-30
- EI Instrument
Why did you choose our products over the competition? Complete kit and ease of installation.
- Customer
Mitch G. from Canada
- Aircraft
DeHavilland DHC-2 beaver
- EI Instrument
EI shines in providing excellent customer support and its products are reliable, affordable and of high quality.
- Customer
Fernando D. from Iowa
- Aircraft
Bonanza G35
- EI Instrument
E.I. Always Exceeds Expectations!
- Customer
Michael S. from California
- Aircraft
Beechcraft Bonanza Model 33 Debonair
- EI Instrument
Just about to begin flying with the EI MVP-50P, so no in-flight feedback yet. But I did study the user manual, then sat in my plane going through the screens, menus, etc. It was very easy and intuitive to locate everything, so I’m confident that it will become second nature to do this in flight… Very happy with all interactions with EI.
- Customer
Robert B. from California
- Aircraft
2002 Diamond DA40-180
- 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
- EI Instrument
Straightforward installation instructions, great wiring harness. Quick answers from Tech Support.