Setback Thermostat, For Use On:24 Volt Ac Heat/Cool And Heat Only Systems, Type:Programmable, Choice Of 0, 5, 10 Or 15 Degree Fahrenheit Setback, Multiple Setback Periods, Liquid Crystal Display Alternately Shows Time And Temperature, Temperature Range:50 To 90 Degrees Fahrenheit, For Gas Or Oil Systems, Color:Light Grey, Logo:Carrier, Weight:6 Oz, Dims:3-3/4H X 6"W X 1"D, Made In China"