The 950ESTD-P2 is a single-button remote control with Security 2.0 encryption for Chamberlain, Liftmaster, and most Craftsman garage door openers manufactured after 1993 with safety sensors. It operates at 1,500 ft. range and can control up to three different garage door opener brands, gate operators, myQ light accessories, and commercial door operators. Universal wireless programming eliminates the need for garage wiring or receiver installation. Dimensions: 0.72 in. (D) x 2.04 in. (W) x 3.20 in. (H).