We think the PT3 is a great choice for anyone looking for a hackable thermal webcam, and we're excited to see what new applications people will create with it. This makes it easier to use if you don't need to install an RF shield, and it also allows for future firmware updates over USB. Unlike the PT2, the PT3 does not have pads to install an RF shield and the Tag-Connect TC2030 programming connector is replaced by the Tag-Connect EC-10-IDC.