Manage compatible 24 V HVAC equipment with a thermostat that learns temperature preferences, supports scheduled operation, and provides app-based control through Google Home. Its 2.7-inch LCD presents temperature, weather, time, and system information in a circular format, while Dynamic Farsight makes selected information visible from across the room. Polished Obsidian provides the dark metallic finish for installations where the thermostat remains a visible part of the room. Occupancy sensing helps the thermostat respond when people are home or away, and Smart Schedule can build schedule adjustments from manual temperature changes. The included Nest Temperature Sensor measures conditions in a chosen room, allowing the system to prioritize comfort where occupants spend time rather than relying only on the thermostat location. Energy Dashboard and related energy-management features provide a view of heating and cooling activity within the Google Home experience. GA05169-US is the fourth-generation Nest Learning Thermostat configuration for US installations. It connects by Wi-Fi for remote management and also supports Bluetooth Low Energy and Thread connectivity. Matter support allows control through compatible smart-home platforms. Installation is intended for compatible low-voltage 24 V HVAC systems; verify the existing system wiring and equipment compatibility before installation, particularly when replacing older thermostats or controlling multi-stage equipment.