MEASUREMENT TEMPERATURE RANGEThe measurement temperature range is -50 to 70 (-58 ~ 158 ) with an accuracy of +/- 1 , and you can change the temperature unit through LARGE DATA READINGWith large data reading window and clear LCD display digits, you can read data quickly and accurately. Comes with a long wire sensor and a solid-state probe, the probe is very sensitive, so it can measure accurately FREEZER TEMPERATURESYou can freely switch between indoor room temperatures and fridge/freezer by pressing the button TEMPERATURE MEMORY It has maximum/minimum temperature memory, two alarm settings (high/low temperature alert) and has a visual alarm/ audible CHOOSE A WAY TO PLACE Offers 3 mounting options: magnet, keyhole, or flip-up stand. You can choose a way to place them when measuring the temperature. Perfect for measuring temperature in refrigerator, freezer, indoor room, etc.