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EC-1 EGT and CHT Instrument
FAA Approved
- TSO’d & STC’d
Monitor Two Channels
- Provides one channel of EGT and one channel of CGT.
- Can be upgraded to a full analyzer by adding an E.I. Remote Switch kit.
Interpret Your Readings Faster
- The digital display allows for quick trend analysis.
Budget Friendly
- Same precision found in the most advanced analyzers on the market, but won’t break the bank.
Accurate, Dependable & Easy To Use
- LCD sunlight viewable and backlit for night operation.
- Electronics International consistently has been a leader in digital engine instrumentation since 1979.
Product Overview
Engine Leaning Feature
Precision Leaning
- Unique stable display allows precise leaning to peak EGT or specific temperature below peak.
EGT Diagnostics
- Valuable tool in troubleshooting EGT or CHT by providing early detection of potential engine problems.

Reliable Probes
An Engine Monitor is only as good as its probes. That’s why Electronics International (EI) has taken the development of its probes, connectors, and accessories very seriously. EI has been designing and manufacturing probes for over 30 years. All of our probes have been designed in-house by our engineering team. Our team has studied, tested, and designed temperature probes since the 1970′s. They have written research documents such as The Pilots Manual – Leaning and Diagnosing Engine Problems and Accurate CHT Measurements.
Just as an Engine Monitor is only as good as its probes, a probe is only as good as its connector. That’s why EI’s engineering team developed EI’s proprietary OLC-1 connector. The OLC-1 connector greatly increases reliability and reduces installation errors as compared to traditional type connectors. Whether you’re looking for a reliable and accurate CHT, EGT, TIT, or various other probe types, EI has what you need. With more than a half-million probes sold and tested you can count on EI’s reliability.
The EC-1 kit includes one (1) P-110F Fast Response EGT Probe and one (1) P-100 CHT Probe.

Prices
Retail Prices
Included in package:
- EC-1 EGT & CHT Instrument
- P-110F Fast Response Probe
- P-100 CHT Probe
- 8′ Thermocouple Extension Cable x 2
- Overlap Connectors
- Wire Harness
- Installation/Operating Instructions
- STC/AML
EC-1 EGT & CHT Instrument Package
EC-1
$580
Lead Time: Usually ships within 2–3 business days.

Specifications
EC-1 Specifications
Dimensions
2.50″ x 2.50″ x 3.65″ Deep, 2 1/4″ Flush Mount
Weight
7 oz (EC-1 EGT & CHT Instrument Only)
Power Requirements
7.5 to 35 Volts, Typical: 0.1 amps @ 12 Volts
Display
Viewable in direct and indirect sunlight.
Backlight
Fully backlit and dimmable for night flights.
Certifications
FAA TSO’d, STC’d

Videos
Product Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
I was able to try out the CGR-30P in a flight school plane. I was very impressed with the ease of use, visual quality, and information provided on the main screen… I feel it will pay for itself in fuel savings, and extended engine time before overhaul.
- Customer
- Aircraft
- EI Instrument
A clear capable replacement for a cluster gauge. Vivid colors used which make it easy to see engine status at a glance.
- Customer
- Aircraft
- EI Instrument
Keep it up. I’ll keep coming back.
My mechanic said that your product was very good, and he was correct.
The display is large and clear. The functions are simple and easy to use. Great purchase decision.
Electronics International is an exceptional company with exceptional products… Oregon company, great products and great people.
Always built well. Always dependable. Been using & relying on EI equip for over 35 years!
Great to have all 6 egt’s, installation was straightforward. [I chose E.I. because of] price and availability.
- Customer
- Aircraft
- EI Instrument
Great tech support. Someone always answers and gives accurate concise information.
- Customer
- Aircraft
- EI Instrument
Great customer service!
Safety and simplicity!
- Customer
- Aircraft
- EI Instrument