3-way wiring installation for Dimmer Switch : Aeotec Help Desk
ELEGRP Digital Dimmer Light Switch for 300W Dimmable LED/CFL Lights and 600W Incandescent/Halogen, Single Pole/3-Way LED Slide Dimmer Light Switch, Wall Plate Included, UL Listed, 1 Pack, Matte Black - Amazon.com
Gloss White 4-Gang Wall Plate with 2 Switches and 2 Dimmers - #57M00 | Lamps Plus
Zooz 800 Series Z-Wave Long Range Dimmer ZEN72 800LR - The Smartest House
4 Gang 2 Way Dimmer Switch Round Angled Plate - Lawson & Heath