Low Voltage Thermostat, Stages Heat 2, Stages Cool 1, Temp. Settings per Day 4, Programs per Week 2, Terminal Designations AUX/E, B, C, G, O, R, Y, WiFi Capability No, System Switching Heat-Cool-Off-Emergency, Fan Switching Auto-On, Display Type Digital, Key Pad Lockout No, Humidification Control No, Dehumidification Control No, Temporary Program Override Yes, Temporary Temperature Hold Yes, Battery Backup Yes, Low Battery Indicator Yes, Batteries Included Yes, Dual Transformer Compatible Yes Digital Programmable Thermostats ⢠Retain programmed information in the event of a power loss White color.