Schlage Z-Wave Home Keypad Lever, Satin Nickel, FE599NX CAM 619 ACC 619, Works with Alexa via SmartThings, Works with Alexa for voice control (hub required, Alexa device and hub sold separately). Receive text or email alert when your family uses their codes, so you know who's home Grant access to your home when you can't be there with a scheduled code to let someone Add, delete or change user codes remotely. Back set: Universal latches and deadbolts fit 2.4 inches or 2.75 inches back sets Run the most important systems in your home-thermostats, locks, lights and cameras  from anywhere with Nexia Home Intelligence This Z-Wave enabled product allows for wireless communication to other Z-Wave products in your home Door range: 1-3/8 to 1-3/4 (35mm-44mm) standard