Pre-Programmed: Energy Saving 5-1-1 Schedule, Four Time Periods per Day Heat / Off / Cool -- On / Auto Fan 1.0 Amps at 24 VAC / DC 50°F to 90°F (10°C to 32°C) ± 2F Separate Base Plate to Aid Installation Battery Operated: Allows Maximum System Compatibility (Two “AA” Batteries Included) Energy Usage Monitor: Keeps Track of Actual Operational Time Hold Mode Operation: Allows For Manual Operation. May Be Used For Vacation Setback 1-Year Limited Warranty