Compared to the original PRO-POINTER, the new PRO - POINTER II has a hole to attach a lanyard, auto shut off, chirps for an hour if you lose it turned on so you can find it, is more sensitive, more durable and costs less then the PRO-POINTER AT. Check out my quick video below:
http://youtu.be/DNlPeNwWBPM
http://youtu.be/DNlPeNwWBPM