Alpha Serial Clock – 4″ Synchronized LED Network Clock

Alpha Serial Clock 4 inch synchronized LED network clock

Keep clocks throughout your facility displaying the same time. The Alpha Serial Clock works independently or as part of an RS485 synchronized LED clock network controlled by a master clock or PC.

  • 4″ super-bright LED numerals
  • Specified viewing distance: 10–150 feet
  • Stand-alone or RS485 network operation
  • 12- or 24-hour time format

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Questions? Call 800-346-4474.

Alpha Serial Clock Overview

A shared time reference helps teams coordinate shift changes, scheduled activities and daily operations. This digital LED clock displays hours and minutes with large numerals for indoor offices, factories, warehouses, schools and retail facilities.

Stand-Alone or Networked Operation

Choose the configuration that fits your facility:

Single Clock

Use one Alpha Serial Clock independently when you need a clear time display in one location.

Master/Slave Clock Network

One clock serves as the master and sets the time for the other networked clocks. RS485 cabling connects the system.

PC-Controlled Network

A computer sets the time for multiple clocks using compatible clock software and RS485 network components.

RS485 Synchronized Clock Network

Plan the clock locations, cable routing and control method before installation. PC-controlled systems require compatible software, RS485 cabling and appropriate network components with TimeNET software.

Key Features

  • Large LED hour-and-minute display with adjustable dimming.
  • Switch-selectable 12- or 24-hour format.
  • Front-access buttons for setting the master clock.
  • Battery backup capability retains timekeeping during a power interruption; the display resumes when AC power returns.
  • Lightweight case and an 18-foot power cord.

Technical Specifications

Case dimensions 13.5″ L × 7.1″ H × 2.2″ D
Weight Clock: approximately 1.6 lb; AC adapter: 1.1 lb
Numeral height 4 inches
Viewing distance 10–150 feet; actual readability depends on installation and lighting
Power supply 30-watt transformer, 120 VAC; transformer listed as UL Listed and CSA Certified
Time format 12 or 24 hours, switch selectable
Operating temperature 32–120°F (0–49°C)
Humidity 0–95%, non-condensing
Synchronization Master clock or compatible PC-controlled clock system
Network connection RS485 cabling

Ideal Applications for Synchronized LED Clocks

  • Manufacturing plants: provide a shared time reference for shifts and work areas.
  • Warehouses and distribution centers: place visible clocks near dispatch and staging areas.
  • Schools and universities: coordinate time across classrooms and staff areas.
  • Hospitals and healthcare facilities: provide readable time displays in appropriate indoor areas.
  • Offices, retail locations and public safety facilities: make time visible to staff throughout the building.
  • Control rooms and multi-building projects: discuss cable distances and network requirements with Salescaster.

Frequently Asked Questions

Can multiple Alpha Serial Clocks display the same time?
Yes. A master clock or compatible computer-controlled system can synchronize the networked clocks.

What communication method does the Alpha Serial Clock use?
Network installations use RS485 cabling with the components appropriate to the selected control method.

Can the clock display 12-hour and 24-hour time?
Yes. The time format is switch selectable.

How far away can the Alpha Serial Clock be read?
Viewing range of 10–150 feet for the 4-inch numerals. Placement, viewing angle and ambient lighting affect readability.

Brochure and Documentation

Download the Alpha Serial Clock brochure (PDF) for product details and network examples.

Related Time and Clock Displays

Need several time zones or calendar information in one display? Explore LED Time Zone & Calendar Clocks.

The Salescaster Advantage

Salescaster helps you define the display and networking requirements for your facility. For a useful quote, include your clock quantity, mounting locations, approximate viewing distances and preferred control method.

REQUEST A QUOTE   or call 800-346-4474.