The industry’s first color touchscreen with all control options on the home screen. The 8840 Color Touchscreen Wi-Fi Automation IAQ Thermostat is an advanced, Internet-connected precision control designed to balance all aspects of indoor air quality: Temperature, Humidity, Air Purity and Fresh Air. Using the app, this precision control provides seamless grow room control and offers standard seven-day programming with up to four events per day. Additionally, this precision control comes with Progressive Recovery, which activates your HVAC equipment before a scheduled event. This precision control module also provides auto-ventilation with Event-Based Air Cleaning, Heat Blast that rapidly raises the room temperature, and a message center that provides feedback, instructions, and service reminders.