The ecobee Smart Thermostat Premium allows you to optimize your energy use through superior intelligence and technology. The included SmartSensor eliminates hot and cold spots and adjusts the temperature in the rooms that matter most. Plus, ecobee suggests schedule recommendations that match your actual routine for accurate and worry-free adjustments. A built-in air quality monitor, smoke alarm detection, and advanced occupancy detection are just a few of the features that make saving energy just the beginning. Save up to 26% per year (compared to a hold of 72oF/22oC) on heating and cooling costs. Automatically balances comfort and savings by adjusting the temperature when you leave and then can restore your comfort settings when you return. Alerts you to poor air quality, provides tips on how to improve it, and reminds you when it’s time to change your furnace’s air filter. Everything you need is in the box and most customers install it themselves in about 45 minutes or less. Simply say "Hey Siri" to adjust the temperature, ask for the news, use the intercom, and more (Apple home hub required). Manage your comfort from anywhere using your iPhone, iPad, or Apple watch. Smart Thermostat Premium is hardwired, so you’ll never have to worry about replacing batteries. A complete home monitoring hub that includes built-in smoke alarm detection and alerts to possible break-ins*. Automatically pauses your heating or cooling to prevent wasted energy.** From packaging to materials, every part of the thermostat creates less waste and uses less resources. ecobee Smart Thermostat Premium ecobee SmartSensor with detachable stand or wall mount Backplate Wire labels Power extender kit Screws and drywall plugs Trim Plate Quick Start Guide Other Features: Bluetooth, HomeKit Compatible, Wireless Internet Access: Some Features Require Internet Access Bluetooth Compatibility: Bluetooth 5.0 Power: C-Wire Battery Type: Coin Type Batteries: Lithium Ion Battery life: 5 years Height: 4 in. / 10.4 cm Length: 4 in. / 10.4 cm Width: 1 in. / 2.5 cm Weight: 8.8 oz. / 249 g Mfr. Part Number: EB-STATE6A-01 UPC or EAN No.: 627988004075 Note: Products sold through this website that do not bear the Apple brand name are serviced and supported exclusively by their manufacturers in accordance with terms and conditions packaged with the products. Apple’s Limited Warranty does not apply to products that are not Apple branded, even if packaged or sold with Apple products. Please contact the manufacturer directly for technical support and customer service. Warranty: 3-Year Limited *Requires ecobee Smart Security plan. **Requires ecobee SmartSensor for doors and windows and ecobee Smart Security plan. Due to standalone lithium-based battery shipping restrictions, this product may only ship via ground and is subject to domestic and international shipping requirements. If the final ship-to address cannot be shipped to via ground, the order may be subject to cancellation.