Product Description Extech Big Digit Indoor/Outdoor Thermometer Big digit thermometer simultaneously displays indoor and outdoor temperatures. Waterproof sensor for outdoor measurement extends on a 9.6 ft thin cable for easy installation. Memory stores min/max readings over time. Thermometer comes complete with built-in stand, external temperature sensor, AAA battery, and wall mount bracket. Built-in memory stores min/ max temperature readings Large LCD display with 1 In. (25 mm) digits Simultaneous display of indoor/outdoor temperature Indoor range: 14 to 140°F (-10 to 60°C) Outdoor range: -58 to 158°F (-50 to 70°C)