The Astro system includes the redesigned Astro 320 and the rugged, orange polyurethane DC 40 transmitter collar. The collar accommodates most e-collar receivers, eliminating the need to put two separate collars on a dog. Plus, Collar Lock creates a 4-digit PIN number that helps prevent others from seeing your dog's whereabouts - a useful feature in field trials to ensure that an Astro is used only as a recovery tool when a dog in competition becomes lost.
To get started, just take Astro outdoors and turn on the handheld and transmitter to acquire GPS satellite signals. Then attach the DC 40 to your dog. Now you're ready to turn him loose - no other setup required.
