Standard Features - Selecto Features Large, 4-square-inch display with easy-to-see characters - Quick one-button programming (See Automatic Schedule section ininstallation instructions) - Configures as manual heat/cool,auto changeover, heat only or cool only - Exclusive Cool Savings featuresaves energy during peak A/C demand periods - Hydronic 2 or 3 wire applications - Three anticipation settings - Exclusive battery power monitor - Longer battery life - Easy-access battery compartment - 5-year warranty