Based on looking at all three scanners, it appears they all three share the same dimensions/size. I bought my 528 on Black Friday last fall and never opened it to use until a few weeks ago. I kept it in a case I purchased from ScannerMaster (see link below).
http://www.scannermaster.com/Radio_Shack_Hard_Leather_Case_p/02-580020.htm
The case was listed for the Pro 91 & 94, among some others. I have to say I CANNOT recommend this case. For the couple of weeks I kept the scanner in the case, The metal snaps and rivets left marks in the side of the scanner by the top where the strap fastens. There was also some wear along the side edges by the keypad. Needless to say, I was disappointed as I had hoped the case would protect my scanner from being scratched, scuffed, etc.
I just wanted to give this review for other fellow scanner hobbyists to read and beware. Oh, and yes, I'll be looking for some sort of soft leather case. Thanks for reading.
http://www.scannermaster.com/Radio_Shack_Hard_Leather_Case_p/02-580020.htm
The case was listed for the Pro 91 & 94, among some others. I have to say I CANNOT recommend this case. For the couple of weeks I kept the scanner in the case, The metal snaps and rivets left marks in the side of the scanner by the top where the strap fastens. There was also some wear along the side edges by the keypad. Needless to say, I was disappointed as I had hoped the case would protect my scanner from being scratched, scuffed, etc.
I just wanted to give this review for other fellow scanner hobbyists to read and beware. Oh, and yes, I'll be looking for some sort of soft leather case. Thanks for reading.