Designed with HVAC professionals in mind;Keeps HVAC companies connected to customers long term with HVAC System Health Monitor;Sleek, modern new design, with elegant finishes and a larger, customizable display;Comes with a Nest Temperature Sensor (2nd gen) to help customers manage hot and cold spots;Compatible with complex HVAC systems up to 4H 2C, including heat pump, ventilation, and central humidifiers and dehumidifiers;Quick, easy installation in the Google Home app, with no need to use the customer's phone;Automated Pro ID helps ensure that you don't miss out on valuable Nest Pro benefits;Smart Schedule gives customers more control and helps cut down on callbacks for your technicians;Adaptive Eco helps balance comfort and energy savings;Smart ventilation brings in outdoor air when it’s cleanest and most efficient;Can be installed without a C-wire in the majority of homes;Comes with a 5-year extended warranty when your technicians enter your Nest Pro ID during installation