Performance Series Wireless Programmable Thermostat Comfort Control at Your Fingertips   Portable, wireless comfort control in the palm of your hand. Seven-day programmability with up to four temperature settings per day. Simple up/down arrow keys and backlit LCD screen allow easy adjustments. Operates on two AA batteries. Five-year limited parts warranty.   Benefits - Carrier’s Programmable Wireless Thermostat allows you to select up to four different temperature settings per day, maximizing your comfort while helping save on utility costs. Features - Portable, wireless convenience allows you to adjust your temperatures no matter what room you’re in. When setting up your Programmable Thermostat, you'll appreciate:   One receiver can accommodate up to four remote thermostat units. Each remote unit can send its signal to multiple receivers as well. Large push buttons and backlit LCD screen makes the wireless programmable thermostat easy to read and program. Seven-day programmability allows up to four temperature settings per day for customized comfort and enhanced energy efficiency. 64 different house codes help ensure interference-free operation. All-electronic operation helps provide more consistent temperatures. Sensors can be moved from room to room for flexible temperature control wherever you need it.         Specifications