Digital Clocks

NTP Master Clock


Network Time Protocol (NTP) is Essential for the Enterprise Network Integrity. NTP is the protocol used by most computers and networks to provide accurate timekeeping on IT networks.

Time on desktops and servers are notoriously inaccurate, and to achieve optimal operational performance, these devices must be synchronised to communicate effectively internally and externally.

Without time synchronisation, organisations can experience data loss and operational failure.

The Simplex 907515GPS NTP Server provides a high precision time directly to TCP/IP networks using NTP (Network Time Protocol).  It synchronises time of any computers or clocks (Analogue or Digital).

This NTP based Master clock is suitable for Hospitals, Railway stations and Airports.

Celestra 2000


The Simplex Celestra 2000 digital clocks provide high visibility under a variety of ambient light conditions. Celestra Models come in 65mm & 100mm digit displays ideal for the following applications:

  • The 65mm Celestra is commonly used in general commercial, office or classroom.
  • The 100mm high display is designed for longer viewing distances, such as in airports, auditorium, cafeteria, large warehouse or manufacturing facilities.
  • dispatching
All Celesta’s can be installed as a “stand alone” clock or synchronised by a Simplex master clock.

 Celestra 2000 Data Sheet
 Celestra 2000 Flyer

Celestra II

The Simplex Celestra II is a highly accurate & readable time / date display ideal for:
  • “stand alone” commercial, finance industries.
  • With an array of master clock correction protocols, perfect for large transport infrastructure applications.
  • The Celestra II “Clip in” technology means you can upgrade your existing analogue slave clocks to a comprehensive digital display without expensive wiring.
Digital “count down” timers also available.

 Celestra II Data Sheet

Outdoor "HMT"


The Outdoor "HMT" provides perfect readability of electromagnetic display even in direct sunlight. It is ideal for: 

  • Outdoor advertising display & Urban display.
  • airports, undergrounds, railway.
  • harbour or bus stations.
  • technical premises.
  • car parks.

It features:

  • Clock with 7 segment electromagnetic displays for outdoor installation.
  • Aluminium case with security protective glass.
  • Built-in illumination by fluorescent tubes.
  • Yellow modules on a black background providing an excellent readability even in harsh conditions such as direct sunlight.
  • 24V minute impulse synchronisation.

World Style - Multi Zone Display

The World Style clock displays the accurate time for 3, 4 or 6 cities in the world. Its plain design fits most interior decors. It is ideal for: 

  • Trading rooms and banking centres
  • airports
  • hotels lobbies
  • travel agencies.

It features:

  • Aluminium matt black case-c/w diffusing filter .
  • Power supply 220/240 V 50/60 Hz .
  • Figures height : 5 cm.
  • Readability up to 20 m.
  • 3 led colours available : red, green and yellow.