STYRAX manufacturers’ digital synchronized master clock systems, and other LED clocks. All clocks can display the same, accurate, legal time. STYRAX commercial digital clocks are specifically designed for applications where precision and reliability are of utmost importance. These clocks may be used as accurate stand-alone time displays. They can also be synchronized so that all clocks display the same time. SDC105M clock synchronizes the Slave Clocks (i.e.SDC1051S, SDC1052S) every second within the RS485 network.