Eberle Temperature Transmitters Indoor thermostat 624126 - Eberle 119 7901 91 100, The Eberle 119 7901 91 100 HYG-E 7001 is an indoor thermostat designed for surface mounting. It provides efficient heating and cooling control in residential or commercial settings. Typical applications include room temperature control and temperature limiting. Eberle 119 7901 91 100 HYG-E 7001 Indoor Thermostat Surface-Mount