Our shop also has an (Nearly obsolete, and battery is on its way out) OmniScanner, use it on rare occassion for troubleshooting and if a customer gets ichy about something, but most all jobs requiring Certification, are 3rd party anyway. Here's the funny part... half the check list is visual inspection, and documentation anyway. [Linked Image] And most of the time, its the customers IT dept that will do it themselves.

Exceeding link length is paramount to instant fail, So a wire mapper with TDR is an inexpensive alternative for a quick check before a third party certification. (Just to save embarasment if someone rolled a pair, or left 300' of cable in the cieling.) Fluke makes a good one for about $500. http://www.flukenetworks.com/us/Cabling/Residential+and+Basic+Testing/MicroScanner+Pro/Overview.htm
or: http://www.flukenetworks.com/us/LAN/Handheld+Testers/LinkRunner/Overview.htm

Some certification tools will run about $2000 -$16000. Not a purchase to be taken lightly. There are also places that rent them, and sell used. Heard of an on-line renter that will Fed Ex one to you for a day. (Forget the name.)

Mark Heller
"Well - I oughta....." -Jackie Gleason