The Big Blue 12" touchscreen thermostats include humidity control, programmable fan and remote sensing, as well as the exclusive Cool Savings™ feature and heat pump dual fuel control, providing the ultimate in comfort control. Our +/- 1˚ temperature accuracy will keep your customers comfortable and protect their HVAC systems. Emerson Big Blue is the result of smart, innovative thinking. Install Big Blue with confidence because it’s exclusively for the professional trade. See back for all the specifications. Simple and logical installer menu set-up and programming and operation are enhanced with audio confirmation of touchscreen entries. Features like variable touchscreen security to prevent tampering, temporary and vacation overrides, and filter change reminders add convenience.