The Emerson NP110 single-stage, non-programmable thermostat is compatible with single stage heating, cooling and heat pump (without aux) systems. This thermostat features backlit display and precise temperature control of plus/minus 1 degree Fahrenheit. This thermostat puts control right at your fingertips with its large, easy-to-read backlit display and precise temperature control of plus/minus 1 degree Fahrenheit.