Genie 37001u Garage Door Opener with 1/2+ HPc DC Belt: * DC motor is a lighter weight providing quiet, smooth operation and soft start and soft stop * Provides 1-touch limit setting meaning fewer trips up the ladder * Commercial grade chain drive system is durable and provides a longer, more reliable life * Comprehensive Safe-T-Beam system meets or exceeds all UL, state, federal and CSA regulations and incorporates an auto reversing system and diagnostics * Genie Intellicode technology prevents unauthorized persons from opening garage door by automatically changing the access code every time it"s used * The Genie Intellicode Door Opener with 1/2+ HPc DC Belt Operates 7" doors or 8" doors with extension kit * Includes two 3-button transmitters, wireless keypad, wall console and Safe-T-Beam * Model# 2042-tk