AcuRite Sensor Wireless Indoor & Outdoor Thermometer, 4.8 in. reliable temperature readings in both Fahrenheit and Celsius, covering a wide range from -40°F to 158°F. This thermometer is designed with an easy-to-read LCD screen that also features a clock and displays the minimum and maximum temperature records. Its flat surface stand and convenient hang hole provide versatile placement options, allowing you to mount it on a wall or hang the wireless sensors in shaded areas for accurate outdoor readings. The indoor receiver operates on two AA batteries (not included), while the sensor unit requires two AAA batteries (not included). Compact and efficient, this thermometer measures 1.6 inches wide by 4.8 inches high, making it an i choice for monitoring indoor and outdoor temperatures. Model Number: