Cooper-Atkins TRH122M-0-8 Digital Mini Temperature/Humidity Dual-Display Wall Thermometer, 14/122° F Temperature Range Review February 19, 2018 No Comments The TRH122M measures both temperature and %Relative Humidity. It features Min/Max memory and switchable F/C. Tags: Cooper, Home & Kitchen, Kitchen & Dining, Kitchen Utensils & Gadgets, Thermometers & Timers