18-inch (45 cm) CLKNTD Series NTP Analog Clock

The CLKNTD Series displays time referenced from an NTP time server or one located on the Internet. 


Click to enlarge photos.


  • Syncs to any NTP source for accurate traceable time  
  • -11.5 to +12 hour, Time Zone offsets in 30-minute increments
  • Daylight Savings Time, US and Canada standard (others optional)
  • Uses standard Ethernet wiring
  • Microprocessor controlled stepper motor for reliable, accurate and quiet operation
  • Sweep second hand
  • Universal AC input voltage and frequency
  • Optional PoE (Power over Ethernet)
  • Internal crystal and clock chip
  • LED status indicator
  • Optional face plate illumination
  • Stainless steel case optional


Setup and Control Software

  • Supports DHCP/BOOTP for automatic acquisition of network address, nameservers, and time server configuration
  • NTP synchronization options and more
  • Provides dynamic configuration for networking parameters, Time Zone/Daylight Savings Time
  • WinDiscovery provides automatic discovery of NTP clocks attached to network without changing PC’s network configuration
  • Configure clocks through provided WinDiscovery, network discovery app or TELNET
  • Configuration is saved to non-volatile memory and survives power losses
  • Password-protected and authenticated network messages prevent unauthorized tampering of clock configuration


  • 18” (45cm) round metal case with polycarbonate lens/crystal, 4.25” (10.8cm) high
  • Surface / wall mount bracket provided
  • Weight: 11.4 lbs (5.1kg)


  • 90-265 VAC 50/60 Hz
  • IEC AC power connector and cord
  • Specify US, UK, EURO, or AUS/NZ plugs
  • PoE (Power over Ethernet) option available
  • < 12.95W power consumption

Operating Parameters

  • Temperature: 0 to +50°C
  • Humidity: Up to 90% (non-condensing at +25°C)


  • CE Marked - available for sale in EU
  • FCC, Class B, emissions