9050: Master ClockThe master clock is a central timing source for experiments that require high precision synchronization of multiple devices. Because it optimizes synchronization, the master clock is perfect for optogenetics, behavioral studies, and other protocols requiring accurate timing. Our precision timing system provides a highly accurate (< 1 ppm from 0 to 70C) clock and three TTL I O ports. It communicates with Sirenia data acquisition software using a USB