The ESE ES-192UE (12 hour) is a low-cost Master Clock for applications not requiring GPS or temperature controlled stability. Like the LX-192UE, the ES-192UE uses the AC line-frequency as a time reference or, optionally, a quartz crystal timebase may be specified. Time & Date data are output to Slave displays via the TC90™ Time Code output. This Unit comes with Option "p" which includes the 1.75" Rackmount enclosure.