Elk Products is famous for their M1 Gold security and automation system. The M1 gold is hugely expandable and can be used for nearly any alarm, security, access control or automation application. It supports Elk's secure encrypted 2 way wireless as well as options for GE/Interlogix sensors. The M1 Gold also has interfaces available to tie in to ZWave, Insteon, UPB and Lutron Radio RA. Elk's extensive line also includes products like high end water shut-off valves, timers, siren drivers and batteries.