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  • Digital Clock Range

Wharton multi-function Digital Clocks for specialised applications - range guide

Wharton 4010.05 series wall clock with 5cm – 2” high red numbers and stopwatch functions

4000x.05 series   20m (60') 


50mm (2") digits

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Wharton 4010.057 clock with four or six 57mm high bright yellow digits – ideal for use as a school exam room clock

4000x.057 series    25m (75') 


57mm (2.3") digits

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Wharton 4010.100 series large digital clock with four or six white characters for industrial applications

4000x.100 series   50m (150') 


100mm (4") digits

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Wharton 4010.12 series large digital clock with four or six white digits designed for industrial applications

4000x.12 series    60m (180') 


120mm (4.7") digits

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outdoor version

Wharton 4010.170 series digital wall clock with 17cm high red LED digits

4000x.170 series    80m (240')


170mm (6.7") digits

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outdoor version

Wharton 4010.220 series very large clock  with 22cm high green illuminated digits

4000x.220 series    100m (300')


220mm (8.7") digits

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outdoor version

Wharton 4010.02 series small digital clock for control panels

4010.02    3m - 10' 
Small panel mounting digital clocks


20mm (0.8") digits

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Wharton 4011.05 series clock with single or double seperate stopwatch displays

4000x.05 series   20m (60')
Two & three display clock/stopwatch


50mm (2") digits

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Wharton 4900 series digital clocks with program seconds outer ring  for radio & TV broadcast studios

4900 series    See product data 
Broadcast studio digital wall clocks.

Digit size & color - see product data

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Wharton four or six digit clock for laboratories, pharmaceutical manufacturing and similar environments

IN04D.Y.S series 20m (60')
Digital clocks for laboratory applications

 57mm (2.3") digits

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  • The Wharton 4000 range of digital clocks has established a proven reputation for use in time and reliability critical applications in command and control rooms, laboratories, production, process and medical facilities, offices and reception areas, school exam rooms and halls (JCQ approved) and all types of transportation systems.
  • We have developed this range of digital clocks to provide an accurate and ultra-reliable time display over an extended operating life with many previous models still in service more than 15 years after first supply.

All Wharton digital clocks have many user-selected modes of operation:

  • Ultra-reliable, 12 or 24-hour time display with four or six-digits and choice of colours. Select alternating time and date or time, date and temperature (requires optional 406 temperature sensor).
  • E, N and NE versions can be used in stand-alone applications using their internal time references.
  • E and NE versions have rear connections to enable time synchronisation using one of an extensive selection of time code protocols from a Wharton 5000 series master clock or suitable third party time reference.
  • You can synchronise E and NE individual digital clocks to a satellite-based atomic time reference via a control message from a Wharton 488HS series GPS or GLONASS time signal receiver.
  • N and NE versions can be controlled and synchronised to time via their 10/100Base-t Ethernet NTP connection to your existing network with accurate time information provided by a local or internet time server for simple, low-cost installation and control.

Stopwatch operation

  • Wharton 4000 series calendar clocks have time digits freely switchable between the display of time-of-day and the display of multifunction stopwatch or countdown time.
  • You can control the stopwatch and countdown timer functions by the IR handset supplied, by an optional dedicated switch panel or by user-supplied voltage free contacts.
  • The following stopwatch and countdown timer functions are user-programmable:
    • Stopwatch display modes
    • Stopwatch display resolution
    • Stopwatch count direction
    • Stop/start and hold switch actions
    • Countdown start count
    • Using external, voltage-free, switch contacts - E and NE versions only
    • Network stopwatch mode - network versions only
  • Further information on stopwatch & countdown timer operation.
  • The high-quality aluminium or steel clock enclosures have a satin black or silver standard finish with alternative finishes available as extra cost options..
  • Base model clocks are suitable for freestanding or wall mounting using the multi-angled brackets supplied. Mounting options include cases for flush wall mounting and single or double-sided units with mounting supports for ceiling suspension.
  • 110-230V AC, 24 or 48V DC or PoE (Power over Ethernet) power supply options.
  • N and NE versions can be controlled and synchronised to time via their 10/100Base-t Ethernet NTP connection to your existing network with accurate time information provided by a local or internet time server for simple, low-cost installation and control.
  • Wharton Electronics Limited has manufactured precision electronic timekeeping equipment since 1975. Our products are in use in over 190 countries and territories.
  • Wharton products have an unrivalled reputation for quality and dependability. See our google reviews for more.
  • If we do not have a standard product that meets your requirement, we can quote you for the manufacture of a custom unit for your application.
  • Unrivalled free product lifetime technical support with unlimited advice and information to the original user for the life of the digital clock. Many previous models are still in service more than 15 years after first supply.
  • All Wharton digital clock products are designed, manufactured and tested to International Quality and Performance Standards.

What other people say:

We would gladly recommend Wharton clocks to any customers who are looking for an accurate timing solution for their business.

Dean Zhu | Shanghai Shouee Technology Co. Ltd

Their full range of digital clocks, displays and countdown equipment allowed us to secure a substantial segment of the Greek market. Thank you guys for doing such an excellent job!

Artemis Denaxas | Rythmos - Denaxas & Trakas

Our digital clock users include: