Honeywell YTHX9321R1011 Prestige SD Touch Screen Thermostat, Redlink Enabled Kit Large, easy-to-read backlit display shows current indoor temperature and humidity, temperature setting, date and time on the home screen. Also displays outdoor temperature and humidity on home screen (if wireless outdoor sensor is installed) Adjustable backlight level allows thermostat to be on full brightness at all times or dim to the brightness level of choice when the thermostat is not being used USB Port allows downloading of installer settings to quickly and consistently perform setup of thermostats in similar applications Up to 3 Heat/2 Cool Heat Pumps Precise Temperature Control (1 F) for reliable and consistent temperature