Straight up install no issues. Works as advertised!
- Customer
John L. from Georgia
- Aircraft
Piper PA-28-151 Cherokee Warrior
- 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

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

Straight up install no issues. Works as advertised!
Outstanding Customer Service!!
[EI’s FP-5L with Aux Carb Temp Option] gave me fuel flow & Carby temp & was easy to retrofit.
Compact, precise, awesome!
I have heard only great words about EI… Won’t be able to install till at least April but I know you are very helpful when it comes to questions.
Really glad to have accurate oil psi and temp! [It’s a] match with previous [EI] installs.
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.
Nice bright display.
Nice experience working with [sales]… to configure my gauges.” Reason I chose EI? “Past experience with EI.
I really appreciate the quality of communication about my order. The instrument offers the right functionality (being a primary instrument) in the right form factor for my application.
Easy installation.
EI shines in providing excellent customer support and its products are reliable, affordable and of high quality.