The Edwards 2000-SC System Clocks are two and four inch Digital Clocks that provide a highly visible time display. The 2000-SC4, four-inch clock, is visible for 160 feet (48.8m) in the bright intensity mode and 150 feet  (45.7) feet in the normal intensity mode. The 2000-SC2, two-inch clock, is visible for 110 feet (33.5m) in the bright intensity mode and 100 feet (30.5) feet in the normal intensity mode. Either unit can be operated in either 12 or 24 hour format. Each minute the time display on the clock updates to the master clock time. This ensures that all clocks in the system are in exact synchronization, and that every clock in the system are in exact synchronization, and that every clock in the system is as accurate as the master clock.

Compliance with FCC Part 15 Class A emissions has been verified and, as a result, the 2000-SC System Clocks meet the requirements for installation in educational, institutional, and commercial sites. The installed clock is ESD hardened to IEC 801-2 Standards.

For new installations, the clocks flush mount into RACO#693, 4-gang masonry backbox, 2-1/2" (6.4cm) deep, or RACO#698, 3-1/2"(8.9cm) deep, or approved. For surface mount installations use the Cat. No. 2000-SC4-SMB surface mount box for four-inch clocks and the Cat. No. 2000-SC2-SMB for two inch clocks.