CRAFTMAN® ½ HP Chain Drive Garage Door Opener Kit lets you come and go with ease by simply using the CRAFTSMAN myQ® app. Now from your smartphone, you can control your garage door from anywhere at anytime as well as get real-time alerts. Designed for 7-ft. garage doors, the opener's rugged chain drive will get the job done, day after day. And with a wireless keypad, outside access is available with a simple touch. Plus, the 3-button remote control allows you to easily program up to three garage doors and boasts a frequency range of up to 1,500 ft. Safety reversing sensors come standard.