1, No need to wire it, easy to fix to the wall. 2, Suits to various auto-door or floor spring door.Adopting wireless emitter and receiver to achieve using access controller by password. This product divides into two types: M-type (maintain transmitting signal) / L-type(change signal by pointing). No need to use wire, easy to fix on the wall. Specially design for auto-door, rotating door, garage operator, gate opener swing or slide, access control applications, commercial and industrial. Adopt microcomputer control system with password use. With far and stable transmitting distance, use DIP switch technology for convenient password setting by users. Save the electricity and lengthen the battery using time. Easy operation of password setting, with initial function by reset button in case of password being forgot. The item "Access Wireless Keypad 315 MHz Entry Gate Opener Garage Door Operator Dip Switch" is in sale since Wednesday, March 8, 2017. This item is in the category "Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Garage Door Remotes". The seller is "gate-hardware-and-equipments" and is located in Miami, Florida. This item can be shipped worldwide.