The Carrier Connect Pro Stat Thermostat 33TCSP-4 is a programmable 7-day thermostat that can be powered by corded electric or electric sources. Made of plastic, this wall-mounted unit features temperature sensor technology with 2 cool stages and auto system switching capabilities. With a 10-year manufacturer warranty, this Low Voltage thermostat is designed for frost protection and offers programmability for optimal energy savings. The thermostat also supports smart home integration with a proprietary protocol for added convenience and control.