The Taylor Precision 9840RB Pocket Thermometer was created for accuracy and sanitation. This thermometer features an easy to read 1/4" digital LCD display. It boasts temperature ranges of -40 degrees to 302 degrees Fahrenheit and -40 to 150 degrees Celsius. The Taylor thermometer comes complete with a protective storage sleeve with a clip and rubber boot that protects the unit. The unit's on / off switch and automatic shutoff help to extend battery life, and an extra LR44 (1.5V) battery is included to ensure continued performance.