The T32-VNP Atlas is a feature-rich, digital thermostat that has been manufactured using the highest quality components and design currently available. When properly installed and configured by a professional heating and air conditioning contractor, the T32-VNP Atlas will provide years of dependable operation. The T32-VNP Atlas is attractive, highly reliable and easy-to-use. Features and Benefits: Battery powered or hardwired Manual or auto changeover Up to 2H/2C gas/electric or 3H/2C heat pump and dual fuel Adjustable heating and cooling setpoint limits PIN protected installer settings Outdoor temperature sensing and display (with T-OTS) Remote temperature sensing (with T-S1) Short cycle protection Fresh air ventilation feature with auxiliary output for fresh air damper