I have been flying with EI instruments for over 20 years. I purchased the CGR-30P to update my engine instruments into one modern package.
PT-300GA – Pressure Transducer
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Product Overview

Model Comparison
| Model | PT-30GA | PT-100GA | PT-100GA-T Torque | PT-300GA | PT-3000S |
| Working Pressure | 0-100 PSI | 0-300 PSI | 0-100 PSI | 0-300 PSI | 0-3,000 PSI |
| Over Pressure | 200 PSI | 600 PSI | 200 PSI | 600 PSI | 6,000 PSI |
| Burst Pressure | 300 PSI | 900 PSI | 300 PSI | 900 PSI | 9,000 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
Working Pressure
0-300 PSI
Over Pressure
600 PSI
Burst Pressure
900 PSI
Accuracy
+/- 1%
dV (btwn GRN & WHT) @ Max Operating PSI
50 mV
Material
316L SS
Power Supply
+5 to +36 VDC
Certifications
FAA TSO’d, STC’d, PMA’d
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
Very complete and thorough packaging. Well-prepped wiring harnesses. Quick and efficient turnaround time. Great communication throughout the process.
- Customer
Parker C. From Georgia
- Aircraft
Beechcraft Bonanza J35
- EI Instrument
Responsive customer service, kudos to [customer service].
- Customer
James A. From Alabama
- Aircraft
Cessna 182B Skylane
- EI Instrument
We’ve worked with EI for years and love the product and support always received. Quality & dependability.
- Customer
Tammy B. from North Carolina
- Aircraft
Air Tractor AT-802
- EI Instrument
Always very friendly and knowledgeable staff. Over time, I have purchased six different EI instruments for the two planes I own. The instruments are easy to install, very accurate, and dependable. EI has very stable and easy-to-operate instruments.
E.I. Always Exceeds Expectations!
- Customer
Michael S. from California
- Aircraft
Beechcraft Bonanza Model 33 Debonair
- EI Instrument
I have been installing avionics since 1996. This was THE BEST wire harness I have ever seen!
[I chose EI because of its] Reputation and value.
Some of the best customer service in the avionics network that I’ve had the pleasure of dealing with. [I chose EI because of the] features, simplicity, and the user-friendly platform.
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.
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
Outstanding support. From the friendly demeanor of whoever answers the phone to all the way to [their sales representative]. Your CGR-30 series is superb.