Keep your measuring board out of your way with the Yakgadget Bump Board Holders. There are 3 different styles. (side lock style for the LowPro Crate, Hobie H-Rail version, and the 90 degree version for traditional gear track.
Compatible with all 3 styles of the Ketch Board. Also fits traditional measuring boards as well. 

Features tethering capability, a rubber grip at the bottom, and shock cord secure latches. These also come in a pair.