5/1/1 programmable. Easy menu driven programming. Intuitive wake, leave, return, sleep programming icons. 4 sq. inch display. Blue backlight. Glow in the dark light button, Easy access battery compartment. Electric or Gas configurable. Separate B & O terminals. Separate heating and cooling swing. (cycle rate) adjustments. Room temperature calibration adjustment.5 minute compressor delay protection (selectable on or off). Simple private label badge system. Easy wire color coded terminal blocks. Universal sub-base. Mounts on wall or junction box. Battery or 24v power. 5 year warranty.