Easy installation, lightweight solution. It looks good and is easy to use. [I chose E.I. because] I needed to replace my old Hobbs meter. This provided more functionality, allowing me to remove my old digital timer, and EI programmed it to my current airframe time.
PT-300GA – Pressure Transducer
FAA Approved Instruments
- FAA TSO’d, STC’d, PMA’d
- Accurate and stable, precise pressure measurements.
- Robust Construction, stainless steel body and pressure ports.
- New Waterproof Seal
- 1/8″ NPT
- Other models available, see below for more details.
Questions?
8am–4:30pm PST M–F
Sorry, We’re Closed
Product Overview

Model Comparison
| Model | PT-30GA | PT-100GA | PT-100GA-T Torque | PT-300GA | PT-3000S |
| Target Pressure | 30 PSI | 100 PSI | 100 PSI | 300 PSI | 3,000 PSI |
| Proof Pressure | 72 PSI | 290 PSI | 290 PSI | 726 PSI | 7,252 PSI |
| Burst Pressure | 108 PSI | 435 PSI | 435 PSI | 1,089 PSI | 10,878 PSI |
| Pressure Type | Gauge | Gauge | Gauge | Gauge | Gauge |
Prices
Retail Price
Packages Include:
- PT-300GA Pressure Transducer
- Larger Mounting Clamp
- Pressure Transducer Data Sheet
Description
Package
Retail Price
PT-300GA Pressure Transducer
PT-300GA
$248

Specifications
Specifications
Type
Gauge Pressure
Target Pressure
300 PSI
Proof Pressure
726 PSI
Burst Pressure
1,089 PSI
Typical Accuracy
+/- 1%
dV (btwn GRN & WHT) @ Target PSI
50 mV
Material
304 SS
Power Supply
+5 VDC
Certifications
FAA TSO’d, STC’d, PMA’d
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
Nice product and good product support!
- Customer
Kenneth G. from Michigan
- Aircraft
Grumman American AA-5B Tiger
- EI Instrument
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
EI tech support is the best.
[The EAC-1] looks great running… The wiring harness was very well fabricated. Installation was easy- fit perfectly in an existing hole in panel. The brightness of the display is excellent.
We liked the price and the reputation of your company.
- Customer
Roy C. From Kentucky
- Aircraft
Piper PA-28-235 Cherokee Pathfinder
- EI Instrument
Looks Great, and intuitive to use. Packs a lot of information in a tight area, yet, I don’t need my glasses to read it!
- Customer
Bill M. from Connecticut
- Aircraft
American Champion Citabria 7KCAB
- EI Instrument
After enquiring through (one of) your dealers and calling EI directly it was clear that you provided good customer service and would likely not drop the ball on tech support, and so far I have been right.
Love my new engine monitoring system.
- Customer
Tyler P. from Alberta, Canada
- Aircraft
Cessna 185F
- EI Instrument
The reviews online were very good. Customer service has been great.
I have worked with your products before and I like them.
- Customer
David K. from New Mexico
- Aircraft
Cessna T20N Turbo Centurion II
- EI Instrument
The CGR-30P is a fantastic product and EI has excellent customer service. EI is the leader in engine monitors with a strong track record.
- Customer
William G. from New York
- Aircraft
Cessna 182Q Skylane
- EI Instrument