Great company to deal with. Excellent customer service. [I chose this E.I. instrument because it’s] simple and easy to use.
- Customer
Dale C. from Ohio
- Aircraft
Cessna 182D Skylane
- EI Instrument
8am–4:30pm PST M–F
[mbhi location="Main"]
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.
| 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
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.
Bluetooth Field Calibration Device [FCD-TR-1] (add $600)
TR-1-FF Fuel Flow Instrument – Premium Package
TR-1-FF
$2,400
Bluetooth Field Calibration Device – Option
FCD-TR-1
$600
Current Mail-in Rebate Happening!
$300 Rebate for the TR-1 Premium Packages

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

Great company to deal with. Excellent customer service. [I chose this E.I. instrument because it’s] simple and easy to use.
Every person was willing to help me when I needed and the whole purchasing process was smooth. [And, E.I.] was recommended by my mechanic.
Really impressed thus far . . . . a rock solid replacement for old mechanical gauges.
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!
We liked the price and the reputation of your company.
Gauge works great! Very happy with purchase.
Customer Service is far superior… with an excellent record of resolving … technical issues.
Sharp-looking gauges. [I chose EI because of your] reputation.
The display is large and clear. The functions are simple and easy to use. Great purchase decision.
Always a pleasure to do business with EI. Products ship rapidly. I have been using your products for 20+ years.
Always built well. Always dependable. Been using & relying on EI equip for over 35 years!
Tach fits my panel nicely, was easy to install.