$ 40.00
This  ADT Pulse In-Wall Auxiliary Switch 45610WB should be installed with the ADT Pulse In-Wall On/Off Switch or the ADT Pulse In-Wall Dimmer where more than one light switch controls a single fixture.
Warning: Buying just this Aux switch will not allow you to control anything. You must have it paired with one of the other switches.
This  ADT Pulse In-Wall Auxiliary Switch 45610WB should be installed with the ADT Pulse In-Wall On/Off Switch or the ADT Pulse In-Wall Dimmer where more than one light switch controls a single fixture.
Warning: Buying just this Aux switch will not allow you to control anything. You must have it paired with one of the other switches.
This is for 2-way, 3-way, or 4-way wiring, not for direct control of loads.
This switch is designed to be installed in a standard wall box and can replace an existing switch. It communicates wirelessly with the ADT Pulse gateway, which allows you to control it from your smartphone or other smart devices.
It requires a neutral wire connection and can be used with incandescent, fluorescent, LED, and halogen bulbs up to a maximum of 600 watts. It is also compatible with dimmable bulbs and can be used to adjust the brightness of the connected lights.
The switch features an LED indicator that lights up when the switch is off, making it easy to find in the dark. It is designed to be easy to install, and ADT provides installation instructions to guide you through the process.

Maria Mac –
It is working fine. a great product