Honeywell Prestige YTHX9421R7001WW 2-Wire IAQ Kit with Thermostat, EIM, RIG, Indoor Sensor, Outdoor Sensor & two duct sensors

Installed this system 3 years ago with a high efficiency furnace joined with a heat pump. System controls both units along with humidifier and fresh air intake unit. System is configured to run the heat pump down to 10 degrees then switch over to high efficiency furnace. The humidity control with window moisture control works extremely well. I'm a retired HVAC technician so I installed the system myself. Being able to control it from my smartphone is great also. Love it.

I installed two Prestige IAQ thermostats on my Honeywell zoned system 12 years ago. Complete with all the RedLINK add on devices (OPTIONAL) the system operation, comfort and energy management has been perfect. The Indoor Air Quality (IAQ) has allowed my family to enjoy very clean air even during high heat outdoors and heavy smoke from the wild fires. Using the app that provides remote control is clear and easy to operate. I count on the advanced notifications for filter reminder, High and Low temperatures and Humidity settings to keep me in touch at all times. Adjustable staging control allows my family to enjoy great temperature control while saving on energy cost. One of my favorite RedLINK add on devices is the wireless outdoor temperature and humidity sensor. With the outdoor sensor we get to see the actual temperature and humidity directly outside our home. I receive excellent energy reports from the Resideo Honeywell Home app, what a great service and feature. The Prestige thermostat has an adjustable color screen completing what I call the perfect thermostat installation.