The White Rodgers 1F86-344 is a non-programmable wall thermostat designed for single-stage heating and cooling systems. It can be powered by either corded electric or AA batteries, and features a digital display, automatic changeover, and low battery indicator. The thermostat is compatible with heat pumps, central air conditioners, and underfloor heating systems, and has freeze protection. It is wall-mounted and has a rectangular shape. The 1F86-344 is manufactured by White Rodgers and is compatible with certain White-Rodgers models and 80 Series models.