I took a look at mine. Part number 3060-17, 0-35 PSI.
It is a Sensys ICT who was purchased by Honeywell. There are a wide variety of sensors available from multiple manufacturers. If you can't source what you need from Honeywell, I would look to SQ D, Allen Bradley, or other industrial automation companies.
The sensor is a three wire with a shield.
I have one of the very first EDM 930's produced that wasn't a prototype. (A buddy of mine worked on the development of it). JPI was very good to me when the unit had a minor issue with the display. They completely gutted the unit and upgraded it to as new at no charge. They should be more than happy to provide you the specs of the sensor so you can source an equivalent.
Check out eBay. There are a few Sensys sensors on there. Might get lucky.