About This Item

• Add-On Slave Switch To Work With Martinjerry Master Switch(Std01, Leading Edge 3 Way Dimmer). 3-Way, 4-Way, 5-Way Control. It Can Not Works Alone. It Cannot Work With Any Other 3-Way Switches
• If You Purchased Our 3-Way Switch Kit (1Master & 1 Add-On), You Can Purchase This Add-On To Build A 4-Way Circuit. This Add-On Switch Will Replace Your 4-Way Traditional Switch.
• Installation Notice: Two Travelers In And Out. Please Send Us Photos If You Are Not Sure. 1 Master Switch You Purchased Can Work With Many Add-On Switches At The Same Circuit.
• Advantage: All Add-On Switches Are Dimmable. And No Additional Wifi Setting Is Required
• Warranty: Martin Jerry Promises 90-Day 100% Refund, 1-Year Quality Warranty For It’S Smart Home Devices On Amazon, Like Wifi Smart Plug, Plugs, Smart Switch, Wall Switches, Smart Bulb, Smart Led Controller, Homekit Smart Plugs