The NATIONAL TIME Executive Series Digital Clock offers features beyond those of the industry standard. This new microprocessor based secondary clock and the MC-100 Master Clock form a unique time keeping system offering on demand time correction. This digital communication format can provide power and instantly correct all secondary clocks to any time of day using only two conductor low voltage wire. This premium series also offers an exclusive automatic dim feature that decreases the brightness to compensate for low ambient light levels. This not only provides a pleasant brightness level but also saves energy during nighttime hours. Nine brightness levels may be selected to satisfy the brightest locations. 12 hour or 24 hour time format is selectable at each clock as well as 50/60hz for accurate timekeeping. Stand-alone operation without a master clock is also made possible using the included time setting buttons. 24VAC units are available in attractive 4" or 2.25" high visibility, wide-bar digits. For extremely long wire runs, 120VAC power and communication may be transmitted by the Master Clock when the appropriate 24VAC transformer is mounted at each clock or double face unit. For systems not utilizing National's Master Clocks, 12-hour resets may be accomplished with a short power interruption each 12:00. The durable steel housing, plug-in connectors and universal mounting plate simplify installation. An optional low profile surface box allows for surface mounted conduit entry. The corridor conversion kit will support top or side mounting, single or double face. Powder grey finish standard, other colors upon request.
[Product Specs]
On-Demand Instant Correction2-Wire OperationAesthetic, Architectural Auto-Dim Feature9 Brightness Levels12/24-hr Display FormatStand-Alone OperationAccurate 60hz Timekeeping Industry's Lowest Power ConsumptionLong-Life Sealed DisplayDurable Steel HousingPlug-in Connectors 
