“[I chose EI because of its] Reputation and value.”
Customer: Al from Washington
Aircraft: Cessna 182P Skylane
EI Instrument: CGR-30P Engine Monitor – Basic
Date: 6/11/2023
“Very accurate readings! The “analog” style LED arc means at-a-glance tach readings that allow the pilot to keep his attention where it matters, not reading a gauge. The digital readout is great for maintenance checks and mag drop tests.”
Customer: David K. from New Mexico
Aircraft: Cessna T20N Turbo Centurion II
EI Instrument: R-1 RPM Tachometer Instrument
Date: 4/20/2023
“Very easy to install. Harness is clearly marked. Instrument worked first time. The instrument is intuitive and easy to use. ”
Customer: William F. from Maryland
Aircraft: Mooney M20C Ranger
EI Instrument: CGR-30P Engine Monitor – Premium
Date: 6/1/2023
“I have never had an issue with any EI products… it looks fantastic on the panel.”
Customer: Thomas A. from Oklahoma
Aircraft: Beechcraft Bonanza E35
EI Instrument: OPT-1 Oil Pressure and Temp Instrument
Date: 6/1/2023

“Very pleased with gauge presentation of information. Love the analog for trend and the digital for precision. [I chose EI for its] long reputation for quality.”
Customer: Harry S. from Massachusetts
Aircraft: Maule M-7-420 Starcraft Turboprop
EI Instrument: TR-1-ToT Turbine Outlet Temperature
Date: 5/26/2023
“[I chose EI because they offer a] certified replacement vs. back-up only and they look great.”
Customer: Nic C. from South Carolina
Aircraft: Piper PA-28 Cherokee
EI Instrument: CGR-30 Combo Package
Date: 5/23/2023
“Currently have multiple EI Instruments in our aircraft. Quality and reliability are key.”
Customer: Jason Y. from Arizona
Aircraft: Cessna 182A
EI Instrument: OPT-1 Oil Pressure and Temp Instrument
Date: 5/22/2023
“Nice Instrument, all the electrical information I need in one place. [I chose EI for its] performance and price.”
Customer: David C. from the United Kingdom
Aircraft: Scottish Aviation Bulldog
EI Instrument: VA-1A Volts/Amps Instrument
Date: 5/21/2023
“Safety and simplicity!”
Customer: Andrew L. from Florida
Aircraft: Piper PA-28-235 Cherokee Pathfinder
EI Instrument: C-6 CHT Instrument 6 Cylinders
Date: 5/11/2023
“Easy install and great gauges. Previous experience showed that EI’s units were… great prices and even better instruments. Being able to install the gauge as a primary instrument was a major plus.”
Customer: Logan from Montana
Aircraft: Cessna 172B
EI Instrument: OPT-1 Oil Pressure and Temp Instrument
Date: 5/3/2023
“Awesome Tech Support. Like the functions it supports and the fit and look in the panel.”
Customer: Brian M. from California
Aircraft: Mooney M20F Executive 21
EI Instrument: CGR-30P Engine Monitor – Premium
Date: 5/2/2023