Premium Quality: Made of great ABS material, temperature range: 40℃ below zero to 70℃, ±1.8℉, high precision. LCD Display: LCD electronic liquid crystal display, easy to read, the information on the screen can tell us the highest, lowest and current temperature at the same time, you can always know the temperature of your freezer. Alarm Temperature: Low and high temperature alarm can be set, beyond the preset high temperature alarm temperature will be issued after the alarm sound (30 seconds) and the red light flashing, the temperature down to stop flashing. Various ways of Placing: rotatable hooks can be used as a bracket to place it flat, it can be adsorbed by suction cups or magnets, or directly hung by hooks, you can set the right way of placing it according to your preference. Widely Used: It can resist the humidity in the refrigerator or freezer, suitable for home refrigerators, freezers, car refrigerators, coolers and so on. It can also double as a house thermometer to track indoor and outdoor temperature.