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ITEM #: 2764959 An ATS Series Master Clock can be configured to ring bells only, or a combination of bell circuit and clock synchronization. It can also control any type of secondary wall clock system.
American Time & Signal - ATS4-512-WEB - Master Clock 4 Relay Combo 1 Clock 4 Signal Circuits
ATS4-512 can operate as a signal programmer only or single master with 2 bell circuits ATS8-512 can operate as a signal programmer, single master with 6 bell circuits or dual master with 4 bell circuits Automatic Daylight Saving Time adjustment Automatic correction after power outage Password security feature 8 schedules, each having 64 multi-function events Selectable 12 or 24 hour format