Chamberlain 1/2 hp Chain Drive Garage Door Opener with MED Lifting Power

1/2 hp lifting force supplied by the MED Lift Power System™Durable chain drive for reliable performanceIncludes two three-button remotes that let you control a combination of up to three openers or Chamberlain interior light modulesTriband™ technology boosts remote range up to 1,500' for a quicker entrance and exitUnmatched Security+2.0® code encryption helps protect against hackingPosilock™ anti-theft protection stops attempts at forced entry and ensures that once the door closes, it stays lockedSafety Sensors project an invisible beam preventing the garage door from closing on people, pets or other objectsTwo 100W standard or CFL bulbs (not included) provide ample light for confident movement around the garageDual-function wall control allows you to control the door and activate lightsWireless exterior keypad permits access with a four-digit secure codeDesigned specifically for 7' garage doors; extension kits required for 8' and 10' doors