Low Voltage Thermostat, Stages Heat 2, Stages Cool 2, Temp. Settings per Day 4, Programs per Week 5-1-1 or 5-2, Terminal Designations C, G, R, RC, W-O/B, W2-AUX/E, Y, Y2-L, WiFi Capability No, System Switching Auto-Heat-Cool-Off, Fan Switching Auto-On, Display Size 5.09 sq in, Display Type Digital, Key Pad Lockout No, Programmable Fan No, Automatic Changeover Yes, Humidification Control No, Dehumidification Control No, Temporary Program Override Yes, Temporary Temperature Hold Yes