Love it!
- Customer
Corey B. From Texas
- Aircraft
Grumman American AA-5A Cheetah
- EI Instrument
TR-1-TQ Engine Torque 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
Open Now
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 two package options for our TR-1 instruments: Standard and Premium. The Standard TR-1 package is designed to meet the price point for customers wanting rugged and reliable replacement instruments at a great price. The Premium TR-1 package is targeted for customers that need to minimize AOG time.
TR-1-TQ Standard Package
- 1 year warranty.
- No Risk, three-month money-back guarantee.
- 8130-3 airworthiness approval tag provided.
$1,700 Retail
TR-1-TQ-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.
$2,000 Retail
TR-1-TQ Additional Options
High Torque Transducer (add $380)
High & Low Torque Transducers (add $628)
Bluetooth Field Calibration Device [FCD-TR-1] (add $600)
Description
Package
Retail Price
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 (premium only)
Certifications
FAA TSO’d -C43c, -C44c, -C45b, -C47a, -49b, -C55a
Videos
Product Videos
TR-1 Turboprop Instruments Overview
Documents
Documents & Manuals
Testimonials
Customer Testimonials
Straight up install no issues. Works as advertised!
- Customer
John L. from Georgia
- Aircraft
Piper PA-28-151 Cherokee Warrior
- EI Instrument
We love our MVP-50P w/ its crisp, intuitive display and ease of operation.
I like being able to get a hold of a technical expert immediately when calling into the main EI phone number… The build quality of the sensors, display unit and EDC seem very good… I appreciate the business practices of EI and have had an EI R-1 Tachometer which has worked flawlessly for the past 20 years.
- Customer
Eric B. From Texas
- Aircraft
Grumman American AA-5B Tiger
- EI Instrument
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!
[The EAC-1] looks great running… The wiring harness was very well fabricated. Installation was easy- fit perfectly in an existing hole in panel. The brightness of the display is excellent.
Easiest company to deal with and an awesome product! Price, Certified for Primary, and Features.
- Customer
Justin E. from California
- Aircraft
Piper PA-30 Twin Comanche
- EI Instrument
Compact, precise, awesome!
- Customer
Harvey C. from Maine
- Aircraft
Cessna A185F Skywagon and AgCarryall
- EI Instrument
I love my new EGT. Very accurate and has ambient air temperature so I know how cold my engine is before I start it. Easy to see lighting.
- Customer
Don K. from Wisconsin
- Aircraft
Piper PA-28-150
- EI Instrument
Excellent customer service. Without a doubt the best aviation part I have purchased.
- Customer
Alan B. from Florida
- Aircraft
Reid and Sigrist R.S.1 Snargasher
- EI Instrument
Works great!
Straightforward installation instructions, great wiring harness. Quick answers from Tech Support.