Standard Features - 12-square inch blue touchscreen display - Stage: 4 heat / 2 cool - 7-day or 5+1+1 day programmable or non-programmable - Humidity/dehumidity control - Programmable fan and remote sense capable - For 24 VAC or millivolt systems - 3-wire zone valve - Tri-powered - hardwired, battery-powered or power-stealing battery assist