RENEL RN20 Refrigeration Equipment Intelligent Thermostat Model: RN20 Adjustable temp: -20C to 49C RENEL RN20 Refrigeration ... freezer temp displayApplicationRefrigeration equipments like Freezer,Refrigerator,Cold storage,Water heater,Aquarium,Fishbowl,Seafood machine,Dish ordering machine.ect(Spec may ...