The TT 10 GPS Track and Train Dog Device is a high-sensitivity GPS tracker that uses 18 levels of momentary or continuous stimulation plus LED beacons and audible tones activated from the Alpha.

Rugged and waterproof to 10 m (33 ft), the TT 10 uses a braided steel VHF antenna to send its position data to the Alpha? 100 (not compatible with Astro?). TT 10 units, when sold separately, ship with a black collar strap. Replacement straps are available in multiple colors (sold separately).