Key features

• •Approach with Caution Buyers should carefully review the detailed installation and wiring instructions in the images before making a purchase. It is advisable to proceed with caution if you do not have prior installation experience to prevent issues such as malfunction and incompatibility due to purchasing the wrong item.
• •Suuwer S721 non-programmable heat pump thermostat for home, up to 2 heating and 1 cooling multi-stage systems.
• •Compatible with Heat Pump systems (with aux or emergency heat) and Heat Pump (without aux) systems. Compatible with most 24V conventional single-stage systems (i.e. conventional force air, central gas, oil, or 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.
• •Dual powered by 24VAC Power or 2 AAA Batteries. No common wire (c-wire) required on most systems (only required on heat only and cool only systems).
• •Easy-to see and read: display with blue backlight, large clear backlit digital display, very suitable for middle-aged and elderly people.