About This Before buying, please confirm whether the product is compatible with your system, and check the size of the product to see if it can cover the traces left on the wall of the old thermostat. Heagstat H721 2 heat/1 cool non-programmable heat pump thermostats, to control the temperature in a room. For use with Heat Pump Systems or conventional (central gas, oil, electric furnaces) single stage systems, up to 2 heat 1 cool. Not compatible with 110-240V electric heat systems (like electric baseboard heat, line voltage, convectors, radiant-ceiling heat).-- does not work with conventional multistage systems, mini split systems and 12v rv thermostats. Accurate temperature control of +/-1-Degree F for consistent comfort, Room temperature display range: 41°F to 95°F, Temperature control range: 44°F to 90°F. Support a heat or cool swing set up (0.2°F to 2°F), which will either prolong or shorten the temperature open time. make comfortable temperatures to reduce energy usage, savings on annual heating and cooling costs. Room temperature calibration adjustment, and 5 minute compressor delay protection (Selectable on or off), with air filter change reminder and low battery indicator available. Display with white backlight, easy-to see and read. large, clear backlit digital display, very suitable for middle-aged and elderly people. Dual-powered (battery and/or hardwire 24Vac power), easy access battery compartment. If you have any problem, please feel free to contact us, we will repley you in 24 hours. the products come with 30 days free return, 2-year Worry-Free Warranty. Overview Brand : Heagstat Model Name : H721 Heat pump Thermostat Product Dimensions : 0.98"D x 4.72"W x 3.86"H Controller Type : Push Button Special Feature : Separate Heating and Cooling Swing, Low Battery Indicator, Temperature Display, 5 Minute Compressor Delay Protection Separate Heating and Cooling Swing, Low Battery Indicator, Temperature Display, 5 Minute Compressor Delay Protection
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