Page 2: Table Of Contents BRG Precision Products, Inc. Jan 1, 2012 600 N. River Derby, KS 67037 800-295-0220 www.DuraTimeClocks.com Product Guide Specification DIVISION 16730 WIRELESS SYNCHRONIZED CLOCK SYSTEM Part 1 General A. Furnish a complete new wireless clock system using BRG Precision Products Wireless Clock System products. Version 5/31/2013, DuraTime HP Manual There is no way for BRG to provide GSA Pricing in our on-line shopping cart. User Changeable Color LEDs, BRG Time Zone Clock 6610J, 6 Zones, 2.5 in. What is battery back up? Updated 11-24-2020, Clocks / Timers / Counters Documentation ,