New old stock, box marked tester ok The RDH10RF/SET is a non-programmable wireless room temperature controller with LCD display used for heating or cooling systems. It has separate operating modes including: Automatic, Comfort, Energy Saving and Frost Protection and can be used with the following equipment: Thermal valves or zone valves, combi boilers, gas or oil burners, fans and pumps. Box Contains RDH10RF/SET & Components, Batteries, Instructions
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