LiftMaster 850LM features Security+ 2.0 Encrypted DIP technology and has 12 two position switches for programming.Features Triband technology which switches between three frequencies to give you the best range. Designed for both gated communities and commercial buildings, the new Universal Receiver and accompanying remote controls feature Security+ 2.0 technology. It utilizes a new, innovative and exclusive narrow band multi-frequency radio, which virtually eliminates radio interference, and eliminates customer call backs due to poor range performance.