Item Description Low Voltage Thermostat, Stages Heat 3, Stages Cool 2, Temp. Settings per Day 0, 1, 2, 4, Programs per Week 7, 5-2, 5-1-1 or Nonprogrammable, Terminal Designations AUX, C, E, G, K, L/A, O/B, R, RC, S, U, W, W2, Y, Y2, WiFi Capability No, System Switching Yes, Fan Switching Yes, Display Size 5.44 sq in, Display Type Digital, Display Color Blue, Key Pad Lockout Yes, Programmable Fan Yes, Automatic Changeover Yes, Humidification Control No, Dehumidification Control No, Remote Sensing Capability Yes This HONEYWELL T6 Pro series low voltage thermostat features an intuitive setup with on screen menus that allow easy set up and changes. Model has a snap-together design with a UWP mounting system that allows you to easily upgrade from a non-connected to a connected thermostat when you're ready for Wi-Fi features-no need to remove the connector and cover plate. Thermostat has a hinged door to help eliminate wall drafts, while the push terminals allow fast and toolless wiring installation.Note: A C-wire is required when upgrading to a thermostat that's Wi-Fi capable.