Eberle Temperature Transmitters Indoor thermostat 624127 - Eberle 131110151100, Eberle's 131110151100 RTR-S 6121-1 is an indoor, surface-mount heating thermostat designed for precise room temperature control. Featuring electronic temperature readings, it is ideal for use with radiator thermostats and other heating systems. This unit ensures consistent heating management for residential or commercial applications. Eberle 131110151100 RTR-S 6121-1 Indoor Thermostat, Low Height, Bi-Metal
