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 PPS Output
o Reimage

Live Demos

Contact Us
Feedback and Bug Reports
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Privacy Policy
Shipping and Tax
Returns and Warranty

NTP250 Cover

Meet your new Time Server

CenterClick produces the NTP200 and NTP250 GPS based NTP Server Appliances that keep your equipment synchronized.

No stupid app, no online accounts, no subscription service, and no Internet needed. Our NTP Appliances are designed to operate with or without Internet access using local administration and configuration.

Our products are trusted by ISPs, schools, TV and radio, enterprises, hobbyists, and others in over 25 countries.

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: $189


NTP250 Bundle

BUY DIRECT - $249 - ON SALE: $234

Power Supply

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

We offer quantity discounts starting at 6+ units, preconfiguration services, and custom modifications are also possible. Please contact us to discuss your needs.


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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 SLAAC EUI-64, SLAAC Token, and/or DHCPv6
Embedded View-only Webserver HTTP & HTTPS
Read only SNMP V1/V2 with limited MIB support
Admin Console / CLI USB or SSH
NTP Client Tracking with JSON & CSV export Up to 500,000 unique IPs Up to 1,000,000 unique IPs
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 3+ Hours
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
Prometheus-compatible Metrics Endpoint Yes
LLDP Advertisement and Neighbor display
Software Upgrade Automatic or Manual. Online or Offline
PPS Output 5V 2-pin pluggable terminal block connector
DC Power Input 8-14V (9V 1A or 12V 1A recommended)
Power Consumption Typical 1W, Max 5W
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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