The digital programmable thermostat shall be a Braeburn®, model number 2020, 3.70 in H x 5.16 in W x 1.38 in D, powered independently with either 24 Volt AC or with two ''AA'' alkaline batteries (3.0 Volt DC). The thermostat shall be compatible with single stage gas, oil or electric heating or cooling systems including single stage heat pumps and 250mv - 750mv millivolt heating systems. The thermostat shall have a bright blue backlight display and separate sub-base for trouble free installation. Temperature control range shall be between 45 deg and 90 deg F, accuracy of +/- 1 deg F, humidity range between 5% and 95% relative humidity. The thermostat shall include non-volatile memory to retain user settings, adjustable temperature limits, filter check monitor, adaptive recovery mode (ARM™) and separate heating and cooling set point program times and temperatures. Thermostat shall have low battery indication and a front reset button will return user settings to default values when pressed. The thermostat can be mounted to a horizontal junction box. Meets Energy Aware® Guidelines.