Refrigerated glass display cases, like those found in grocery and convenience stores, contain heat strips to prevent moisture from forming on their glass and frames. Uncontrolled anti-sweat heaters typically operate continuously, yet they are needed only a fraction of the time.

The Door Miser anti-sweat control system saves you energy and money (typically 70–90 percent on your anti-sweat heating costs) by activating the heat strips only when the formation of condensation is detected.