The Emerson 809-0035 MRLDS-250 Chiller Refrigerant Leak Detector is a black plastic unit designed for detecting refrigeration freon leaks. It operates on a corded electric power source with 24V voltage and 10A amperage. Manufactured by Emerson, this MRLDS-250 model is compatible with Emerson 809-0035 MRLDS-250 chillers and offers a 1-month manufacturer warranty. Made in the United States, this leak detection sensor is a reliable and efficient tool for maintaining HVAC and refrigeration systems. In good working condition when removed.