Marathon Large 12"Institutional Indoor/Outdoor Thermometer. Color-White. SKU-BA03002F EASY TO READ- 12-Inch large classic institutional style thermometer. The temperature is visible from a distance. SIMPLISTIC DESIGN- Plain white institutional face. Ideal for classrooms, hospitals, laboratories, office settings, etc. VERY SIMPLE TO OPERATE - No instructions necessary. This is the simplest thermometer on the market with no buttons to operate. WALL MOUNT  Keyhole located on back for easy wall mounting. WIDE RANGE - The temperature range is from -40C/-40F to 60C/140F allowing you to use this outdoor thermometer in the majority of weather conditions.