Your weekly schedule isn t the same as your weekend routine. The versatile Honeywell Home Programmable Thermostat gives you the freedom to program your weekday and weekend schedules independently so your comfort settings can truly be on your time. A great thermostat for low volt heating/cooling systems with high expectations for performance. If you like the idea of a thermostat you can program for weekdays and weekends but you have a low volt heating and cooling system this 5-2 Day Programmable Thermostat is for you. It is compatible with several types of low volt heating/cooling systems. Plus it comes with features like weekday/weekend programming and a backlit display for easy operation.