For starters - welcome to RR.com and welcome to scanning in the Sacramento area. There are a lot of helpful people in this community.
As sfdf mentioned via the link -- The Pro-94 will not work on the SRRCS.
A while back the radio system went through some technical changes, making several scanners incompatible.
Here is an "easier to read" manual for your scanner. -- Easier to Read Pro 94 Scanner Manual
Your scanner will not work with several systems in the region, but there are still plenty of things to monitor outside of SRRCS. Here is the Sac County link Sacramento County, California (CA) Scanner Frequencies and Radio Frequency Reference
If you do want to monitor SRRCS, you'll need a different scanner. Doesn't have to be super brand new scanner, but I do recommend a Digital scanner if you want to monitor SRRCS.
Browse through ScannerMaster.com to get an idea of what is out there and the cost. Scanner Master - Police Scanners by Uniden Bearcat, AOR and Radio Shack.
Also browse through the Sacramento Valley forum, there are YEARS worth of posts with a great deal of information for this region.
My personal favorite scanners are the Uniden BCD396XT and BCD996XT
(PS new Uniden scanners are coming out early this year)
Finally, here are some basics on understanding Trunked Radio Systems
Trunking Basics - The RadioReference Wiki
Trunked Radio Systems - The RadioReference Wiki
Trunked radio system - Wikipedia, the free encyclopedia