Low Voltage Thermostat, Stages Heat 4, Stages Cool 2, Temp. Settings per Day 0, 2, Programs per Week 7, 5-1-1, or Nonprogrammable, Terminal Designations -, +, 6, A1, C, G, L, O/B, RC, RH, S, W/E, W2, Y, Y2, WiFi Capability No, System Switching Auto-Heat-Cool-Off-Emergency, Fan Switching Auto-On-Program-Circulate, Display Size 12 sq in, Display Type Digital, Display Color Blue, Key Pad Lockout Yes, Programmable Fan Yes, Automatic Changeover Yes, Humidification Control Yes