The Honeywell Home CT33A Horizontal Non-Programmable Thermostat is a white, square-shaped device made of plastic. It operates on a 24V corded electric power source and features a 2-wire wire configuration. This thermostat is designed for wall-mounting and offers adjustable temperature control through its switch control style. With a heat stage of 1 and a system switch for heat-off operation, this thermostat is suitable for heating systems and is compatible with universal products.