The Alpha with one track & training collar will set you back $800. An Astro unit will just track and does not have the tone and stimulation features and is usually quiet cheaper.Good looking dog and dang almost 1/2 mile away.
I know I can Google it but how much does that GPS collar set up cost. Just asking cause am fixing in the next 4 months try to train 2 black labs to trail wounded/lost deer and that will come in handy if I need to take them off the lead.