Trimble | 52240-20 | GPS Pathfinder PROXT Pro Series Receiver - No Battery | eBay
GPS leash - Dogtra Pathfinder
CSDS Tutorial: Installing Trimble Pathfinder Office Software onto a Windows Desktop or Tablet OS... - YouTube
Amazon.com: Dogtra Pathfinder 2 Additional Receiver Dog GPS Tracker e Collar Black LED Light No Monthly fees Free App Waterproof Smartwatch Control Satellite Real Time Tracking Long Range Smartphone Required : Electronics