Friedrich KWW Thermostat Kit for K&uuml;hl &ldquo;N&rdquo; Series Room Air Conditioner Four Program Periods (Morning, Day, Evening and Night); The time and temperature can be set for each period; The default program parameters conform to Energy Star guidelines and are a good place to start Battery powered, no control wiring needed; Runs on 2-AA batteries (4-included); Can operate continuously for approximately 18 months with all 4-AA batteries installed Kick-Stand design permits the thermostat to stand on a flat surface such as a table or shelf in the event that permanent mounting to a wall is not desired RF technology means flexibility; Radio Frequency technology used to allow the KWW to communicate with the included KCM; this is on a 900MHz band Large Blue Backlight Screen; Easy Push Button Adjustments; Degree Fahrenheit and Celsius Selection Button; Utility Demand Response capable interface to any building automation system Four Program Periods (Morning, Day, Evening, and Night). The time and temperature can be set for each period. The default program parameters conform to Energy Star guidelines and are a good place to start. Battery powered, no control wiring needed. Runs on 2-AA batteries (4-included). Can operate continuously for approximately 18 months with all 4-AA batteries installed. Kick-Stand design permits the thermostat to stand on a flat surface such as a table or shelf in the event that permanent mounting to a wall is not desired. RF technology means flexibility. Radio Frequency technology used to allow the KWW to communicate with the included KCM; this is on a 900MHz band. Large Blue Backlight Screen. Easy Push Button Adjustments. Degree Fahrenheit and Celsius Selection Button. Utility Demand Response capable -- interface to any building automation system.