Product HighlightsThe Emerson Blue™ 4"80 Series single stage thermostat offers 5 +1 +1 Day programming.
- Large, 4-square-inch blue display with easy-to-see characters
- Configures as manual heat/cool, auto changeover, heat only or cool only
- Exclusive Cool Savings™ feature saves energy during peak A/C demand periods
- Hydronic 2 or 3 wire applications
- Battery power monitor
- Easy-access battery compartment
- 5-year warranty
California residents: see Proposition 65 Warning
Weight 7.65 Pounds Length 1.25 Inches Width 4.44 Inches Height 3.44 Inches Country of Origin CHN Brand Emerson Voltage 24 VAC Electrical Rating 0 to 30 VAC Power Method Battery or Hardwired Batteries Included Yes 750mV Compatible Yes Auto Changeover Yes Backlit Yes Built In Wi-Fi No Change/Check Reminders Yes Daylight Savings Time Ready No Digital-Non Programmable No Digital-Programmable Yes Display Yes Display Options LCD Displays Outdoor Temperature No Heat Pump Compatible Yes Humidification No Indoor Remote Sensor No Language English Low Battery Indicator Yes Programmable Fan No Stages Cool 1 Stages Heat 1 Temperature Settings per Day 4 Touchscreen No Battery Backup Yes Ambient Temperature Range 32°F to 105°F (0°C to 40.5°C) Application Gas, Oil, Electric, 750mV Color White Differential Temperature 0.4° to 1.7°F Dual Transformer Compatible Yes Fan Switching Yes System Switching Yes Temperature Range 45°F to 90°F (7.2°C to 32.2°C) Terminal Designations RC,RH,C,W,Y,G,O/B Energy Star Rated No Cycle/Hertz 60 Hz Phase Single
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