CenterClick NTP200 and NTP250 GPS Based NTP Server Appliance


o Features
o Hardware
o Software
o Getting Started
o Release Notes
o Front Panel Button
o Front Panel LEDs
o USB Console
o Admin CLI
o Using HTTPS
o SSH Authentication
o Client List
o Antenna Issues
o Graphs
o Reimage

Live Demo

Contact Us
Feedback and Bug Reports

Privacy Policy
Shipping, Tax, and Returns

NTP250 Cover

Meet your new Time Server

Included in the Box

  • Your NTP200 or NTP250
  • A DC power supply (unless you opted for no power supply)
  • A GPS antenna
  • The getting started guide

Supply Yourself

  • An Ethernet cable
  • A Micro-B USB cable (if needed)


NTP200 Bundle

BUY DIRECT - $199 - ON SALE: $179

buy now


buy on amazon


NTP250 Bundle

BUY DIRECT (with AC power supply) - $249 - ON SALE: $229

buy now

BUY DIRECT (without AC power supply) - $244 - ON SALE: $224

buy now


buy on amazon

Direct purchases include free shipping within the USA. For international shipping quotes please see our shipping policies.


The NTP200/250 series is ideal for hobbyist, time enthusiasts, and just anyone who wants accurate clock synchronization in their home or business to either supplement or replace Internet NTP synchronization.

Stratum 1 NTP Yes
CPU & RAM Multi-core ARM CPU with 256MB RAM Multi-core ARM CPU with 512MB RAM
Storage 8GB or 16GB MicroSD card
Wired Ethernet 10/100mbps
IPv4 Static or DHCP
IPv6 Static or Autoconf or DHCPv6
Embedded View-only Webserver HTTP & HTTPS
Admin Console / CLI USB or SSH
NTP Client Tracking Up to 1 Million unique IPs, with JSON & CSV export
NTP ACLs by IP/Mask Rate limit, Sync, Query, Block
Cloud-Free Technology
(No stupid App, No online accounts, No subscription service, No Internet needed)
GPS Antenna Included Yes, with magnetic attachment, 10ft cord, and SMA connector
GNSS Constellations GPS, GLONASS, Galileo, SBAS, QZSS
Front Panel LEDs Power, System Status, NTP Status and PPS
Internal Power Backup for GPS and RTC 5+ Hour
Graphs of GPS, NTP and System Status 7-day graphs
Location Privacy Location can be hidden or shown on Web interface
JSON Encoded Raw Data for Custom Integration Yes
LLDP Advertisement and Neighbor display
Software Upgrade Online & Offline
DC Power Input 8-14V (9V or 12V recommended) Older NTP250's 8-11V (9V recommended)
Newer NTP250's 8-14V (9V or 12V recommended)
802.3af PoE No Yes
Dual Redundant Power Inputs No Yes (DC + PoE)

Need Help, Got Questions?

Check out the Documentation and support is available by submitting a question.

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