Add-on Switch for Martin Jerry 3 Way 4 Way Smart Switch Dimmer, Cannot Works independently

Features

• 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