Connect your Elk-M1 Control to your Z-Wave enabled devices with the ELK-M1 to Leviton Z-Wave Interface, a specialized Elk-M1 serial expander. Now you can combine the innovation of Elk products with the wireless convenience of Z-Wave technology. Connect with wireless Z-Wave devices including: lights, thermostats, electronic locks, etc. Activity/status LED indicator Sleek, compact design Z-Wave Technology Z-Wave is a wireless, low power, "mesh" network technology widely used for automating devices such as lights, thermostats, electronic locks, etc. Z-Wave empowers devices to be remotely controlled from across the room or across the world with benefits such as energy savings, convenience, and comfort. A key benefit of combining the ELK-M1 to Leviton Z-Wave Interface and VRC0P+3 is the ability to interface with new generation Z-Wave devices such as the electronic deadbolts and locksets from Kwikset, Yale, and Schlage. NOTE: Requires an additional part, the Leviton VRC0P+3 Z-Wave Serial Interface (sold separately).