The Acu-Rite 01360 12.5-inch Basic Thermometer looks nice, but it never displays the correct temperature. Why? Although the back is open, this thermometer is designed to be hung on a flat wall. When correctly installed, there is NO air circulation around the internal bi-metal coil which moves the temperature pointer. It can take an hour or more for the pointer to move after the air temperature has changed. Therefore, the current temperature reading is never correct.