New digital thermostats come in a variety of shapes and sizes and provide a range of temperature control functions. These thermostats can be purchased for both high and low voltage systems to enhance system control. Most models provide at least a 2/5 day programming feature with four different 24hr. timing changes. Many digital thermostats have a 7 day independent programming function. Depending on the system design, a digital set-back thermostat may or may not be right for you. Checking with your local service person is advised. Where applicable, these thermostats provide a reliable and accurate temperature control addition to your system.