The O.C. White PMB-3 1st Gen is a Top Center Post Mounting Bracket for connecting an Ultima Gen 1 Arm to Gen 1 15000 Modular Clamp Assembly. You can NOT use the LCD screen in this set-up.
Please Note: This bracket is for ProBoom® Ultima® GEN 1 ONLY and WILL NOT work with current GEN 2 Assemblies.