The beautifully detailed stamped metal design boasts an upscale look combining a decorative element with function. Engineered with a precision-made thermometer coil that is factory calibrated, ensures accurate readings every time. Features easy-to-read numbers in both F and C scales. Includes three extra-strong magnets that connect the front and back housing securely over any screen window or door. Install on a screen door for an added feature of a screen saver! Ideal for helping to prevent people or pets from accidentally colliding with closed screen doors, causing damage or injury. TIPS: No batteries are required. For the most accurate readings, install it out of direct sunlight. With over 170 years in the measurement business, Taylor is a brand you can trust.