Honeywell THX9421R5013 Prestige® IAQ 2.0 HD Thermostat ; RedLINK™ Enabled; Selectable for Residential and Commercial; 7 Day Program; Up to 4H/2C Heat Pump; Up to 3H/2C Conv; Controls Humidification, Dehumidification and Ventilation; Must be Used with Equipment Interface Module. The Prestige® IAQ 2.0 thermostat is a 2 wire high definition color touch screen thermostat, 7 day programmable, configurable for residential and light commercial, up to 4 heat / 2 cool heat pump and up to 3 heat / 2 cool conventional, controls humidification, dehumidification and ventilation, provides Delta T Alerts and Diagnostics, works with the Equipment Interface Module and RedLINK™ accessories including the RedLINK™ Internet Gateway, Portable Comfort Control, Wireless Outdoor Sensor and Wireless Indoor Sensor.

Features:

• Control heating, cooling and IAQ equipment with only 2 wires at the thermostat. Heating, cooling and IAQ equipment wires to the Equipment Interface Module.

• Patented interview based programming and installer setup.

• RedLINK™ wireless communication.

• Increase profit per job by including RedLINK™ accessories that provide comfort and convenience. RedLINK™ accessories include the RedLINK™ Internet Gateway, Portable Comfort Control (PCC), Wireless Outdoor Sensor, Wireless Indoor Sensor, TrueSTEAM™ humidifier with Wireless Adapter and TrueZONE® zoning panel with Wireless Adapter.

• Configurable for residential and light commercial applications. Meets commercial code and is title 24 compliant.

• Light commercial - commercial language (occupied and unoccupied), schedule holidays and custom events, remote setback, economizer and time of day.

• Delta T Alerts and Diagnostics informs customers when their system is not operating as expected with instructions to contact the dealer. Provides a sense of security and greater comfort while generating repeat business.

• All Prestige® IAQ 2.0 systems come standard with a return and discharge air temperature sensor to measure Delta T.

• Alerts and User Interactions Log - Keeps a searchable history of alerts and setting changes to the thermostat to determine if there is a system malfunction or if the issue was caused by user error. Saves time in troubleshooting and points the technician in the right direction.

• Customizable Service Reminders allow dealers to remind their customers when its time to call for service, when their warranty is expiring and to provide customized alerts.

• USB port for transferring Installer Setup, Customizable Reminders, Custom Events and Holidays to multiple thermostats.

• USB port for adding the dealer's full color business logo on the screen.

• 3 assignable outputs to control humidification, dehumidification, ventilation and a stage of heating or cooling.

• 2 assignable inputs can be used with wired