The Honeywell Home Rchtsensor-2Pk Smart Room Sensor Is Compatible With Wifi Product Details Smart Room Sensor Place Smart Room Sensors where you want to see each room's temperature and humidity. Use the multi-room display on the thermostat's touchscreen or in the app to easily focus on rooms either based on their occupancy or according to a specific schedule you choose. Compatible with Honeywell Home T9 and T10 Smart Thermostats DOUBLE THE COMFORT. Smart Room Sensors work with the T9 Smart Thermostat to sense temperature and humidity from multiple rooms. WELCOME TO JUST RIGHT. Sense the temperatures in the rooms that matter. Focus on the rooms you choose by setting a schedule. FOCUS ON THE ROOMS PEOPLE ARE IN. Let the sensors focus on rooms people are in, using motion detection. Stay cozy as you move room to room. HELP EVERYONE SLEEP COMFORTABLY. Set your T9 to sense the temperature from the bedrooms at night, to keep those rooms the coolest and help everyone get a cozy night's sleep. SIMPLE INSTALL FOR A DIY PROJECT. Smart Room Sensors are easy to set up without any tools required. Use the Resideo app to connect. CONTROL IT YOUR WAY. Control the T9 and Smart Room Sensors using the Resideo app to control your home anytime, anywhere. MULTI-ROOM FOCUS. Focused on multiple rooms, the T9 will work towards creating an average temperature across the sensors. (T9 sold separately) SENSORS THAT WORK WITH YOUR MOVEMENT. Motion detection that knows the difference between passing through a room or spending time there. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.