- Primary Replacement STC’d, TSO’d & PMA’d
- 3 1/8″ Flush Mount
- Replace Up To 16 Gauges In Your Panel.
CGR-30C Cluster Gauge Replacement
Every package is custom built to your POH/AFM. Please allow for longer than normal lead times.
FAA Approved Primary Replacement
- Primary Replacement STC’d, TSO’d & PMA’d
- The CGR-30C allows for the removal of old engine instruments such as oil temperature/pressure, fuel pressure, and fuel level.
- Monitors four or more fuel tanks in an easy-to-read, full-color digital format.
Easy To Install
- The CGR-30C mounts flush into an existing 3 1/8″ hole.
- Engine Data Converter (EDC) accepts all inputs. Only 2 wires run to the back of the instrument.
Accurate, Dependable & Easy To Use
- Electronics International consistently has been a leader in digital engine instrumentation since 1979.
Data Recording of Every Flight
- All monitored functions are stored up to three times per second.
- Up to 1,500 most recent flights stored, downloaded via a USB port.
CGR-30C Main Screen

The CGR-30C provides several full-color strip gauges and/or arc gauges (see the alternative configuration below). These give pilots a quick reference view of critical parameters, along with digital readouts for the pinpoint accuracy expected from Electronics International products.
Main Screen Alternative Configuration
The CGR-30C offers an alternative Main Screen configuration with MP and RPM arcs.

CGR-30C Secondary Screen

The Secondary Screen is intended to display functions which do not need to be displayed continuously. This screen can display up to 6 secondary functions or additional primary functions that will not fit on the Main Screen. These primary functions will all annunciate to whichever screen you’re viewing if a limit is violated. The red and/or yellow range annunciators on the Secondary Screen will blink to alert the pilot of any potential problem with a primary function on the Main Screen.
Checklists Feature
Valuable Tool for Safe Flights
- Checklists can help ensure critical steps are followed in any phase of flight.
- Store up to 50+ custom checklists.
- Checklists can be created in a text editor, then uploaded via USB to the CGR-30C.

CGR-30C Data Recording
This screen allows you to download Flight Data to a USB flash drive and set the Data Sample Rate. The Data Sample Rate is the time interval between recorded data. The CGR-30C can record up to 1500 flights before it records over the oldest flight first. The USB port may be found mounted in the instrument panel or hanging under it. Flight Data is recorded and downloaded in a comma delimited format. This allows the file to be ported directly into Excel.

CGR-30C Retail Prices
Every package is custom built to your POH/AFM. Please allow for longer than normal lead times.
Due to increased demand, our current lead time is 6-8 weeks.
Description | Package | Retail Price | Rebate Amount |
CGR-30C Package (prices include probes & cables) with EDC* | CGR-30C | $3,098 (+ based on function selection) | $200 |
CGR-30C Package (prices include probes & cables) without EDC* | CGR-30C-NO-EDC | $2,598 (+ based on function selection) | $200 |
*Engine Data Converter (EDC) accepts all inputs from probes and transducers. If an EDC is already installed for another instrument, then an additional EDC may not be required.
First 8 functions selected are included in the package price, functions 9-16 may incur additional charges. Prices indicated below.


Oil Pressure ($250) | VAC ($150) | Tach Time (N/C) |
Oil Temperature ($98) | Volts ($39) | OAT ($98) |
Fuel Flow ($295-$690) | CO Detector** ($695) | Horsepower** (N/C) |
Fuel Pressure ($195-$390) | Manifold Pressure ($150) | Flight Time (N/C) |
Fuel Levels ($150) | RPM ($98) | Local Time (N/C) |
TIT ($98) | Engine Time (N/C) | Local Time (N/C) |
Hydraulic Pressure ($250) | Amps ($39) | Local Time (N/C) |
Carb Temp ($95) | Second Amps ($195) | Cabin Pressure ($150) |
EGT Single Channel ($98) | CHT Single Channel ($98) | Cabin Differential Pressure ($150) |
**Other function rules may apply. See the CGR-30C Configuration Worksheet for details.
CGR-30C Specifications
Dimensions
3.25” x 3.25” x 4.45” Deep, 3 1/8” Flush Mount
Weight
1.1 Pounds (Instrument Only)
Power Requirements
7.5 to 30 Volts
Typical: 0.2 amps @ 12 Volts, 0.1 amps @ 24 Volts
Display
Active Matrix, Sunlight Readable
Backlight
Fully Dimmable for Night Flights
USB Port
Data Download and Software Updates
Internal Storage
Up to 1,500 most recent flights stored. All monitored functions are stored up to three times per second. Recorded flight data can be easily downloaded via USB port.
Certifications
- FAA STC’d as Primary Replacement
- FAA TSO’d to DO-160G
- FAA DO-178 Level C
- Transport Canada Civil Aviation (TCCA) Validated STC
- European Aviation Safety Agency (EASA) Validated STC

Engine Data Converter (EDC-33P) Specifications
Dimensions
5.85” x 3.71” x 2.35” Deep
Weight
1 Pound (Instrument Only)
Power Requirements
7.5 to 30 Volts, Typical: 0.1 Amps
Certifications
FAA TSO’d to DO-160G and DO-178 Level C
Supported Channels
1 Volt Channel, 1 Amp Channel, 1 Fuel Flow Channel, 6 Pressure Channels, 17 Temp Channels, 4 Resistive Fuel Level Channels, 4 Capacitive Fuel Level Channels and 2 RPM Channels

CGR-30C Videos
CGR-30C Downloads
Testimonials
“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!”
Customer: C Scott Van W. From Idaho
Aircraft: Cessna 175 Skylark
EI Instrument: CGR-30 Combo Package
“Nice experience working with [sales]… to configure my gauges.” Reason I chose EI? “Past experience with EI.”
Customer: Clark M. from New Hampshire
Aircraft: Beechcraft Bonanza C35
EI Instrument: CGR-30C Cluster Guage Replacement
“Great product, frees up space”
Customer: Theodore S. from Florida
Aircraft: Cessna 182Q Skylane
EI Instrument: CGR-30C Cluster Guage Replacement
“Love the look and having every piece of info in front of me… Better price and look [versus competition].”
Customer: Gregg J. from Indiana
Aircraft: Piper PA-32R-301T
EI Instrument: CGR-30C and CGR-30P
“We chose your product because of the great support and reputation your company sustains.”
Customer: Ryan C. From Washington
Aircraft: Cessna 182P Skylane
EI Instrument: CGR-30C and CGR-30P
“We chose your product because of the great support and reputation your company sustains.”
Customer: Ryan C. From Washington
Aircraft: Cessna 182P Skylane
EI Instrument: CGR-30C and CGR-30P