Customer Testimonial

"We have used Franklin Instruments and their clocks for many years for our K-12 Market.

They have incredible service and their products are second to none.

The response time is very fast and has made our customer dealings so much easier.

I highly recommend Franklin Clocks!"

- Greg Alavezos EKC Enterprises, Inc.

For a quote please email us at sales@franklinclock.com or give us a call at
800-321-2353

Franklin Instrument’s master clocks are microprocessor/quartz crystal based time system controllers designed to drive a variety of low voltage impulse, midnight reset, sync wire, and RS232 secondary clocks. A complete line of both analog and digital secondary clocks are available.

  • Analog Secondary Clocks

    Call us at 215-355-7942 to order these items.

  • Digital Secondary Clocks

    FD254-RS485 / FR254-RS485 / FD404-RS485 / FR404-RS485 are our “Smart-Clocks” used as secondary clocks. They can be driven by FRANKLIN’s Quartz F Master Clock to provide accurate, continuously updated, synchronized time via simple two wire distribution.

  • GPS Time Receiver

    Global Positioning System (GPS) is a radio navigation system available worldwide. A fleet of 24 satellites orbit the earth broadcasting their position coordinates and highly accurate time code. Each satellite is equipped with atomic frequency standards, they are widely used for time synchronization, frequency calibration, and navigation. GPS receivers can provide traceability to the national frequency standard maintained by NIST. The GPS signals are monitored in Boulder, Colorado by NIST. The frequency standard on each satellite is compared to the NIST frequency standard. Commercially available GPS receivers often provide a 1 pulse per second (pps) timing output, and standard frequencies such as 1, 5, and 10 MHz. Properly designed GPS receivers can provide traceability to the national frequency standard maintained by NIST.

  • Master Clock & Event Programmers

    Call us at 215-355-7942 to order these items.

  • Quartz F Master Clocks

    Franklin Quartz F Master Clock is a microprocessor/quartz crystal based time system controller designed to accurately drive a variety of low voltage Impulse, Midnight Reset, Sync Wire, and RS232 secondary clocks. When equipped with optional signal conversion, the Quartz F provides cost effective interconnect capabilities for the installer. User friendly and power efficient,it is ideal for office,school or industrial applications where the programming of signals or events is not required.

  • WWVB Time Receiver

    The Franklin STRADA MODEL STR-12 110R is a compact radio signal receiver and converter. The unit receives WWVB atomic time and updates system time every minute. Provides minute impulse for driving tower clocks or synchronization of master clocks.