Unique unit measures ambient temperature in Fahrenheit and Celsius. Internal sensor makes it ideal for use in incubators, store rooms, drying chambers, hoods, clean rooms, environmental cabinets and on desks. Displays from 32.0° to 122.0°F and 0.0° to 50.0°C. Resolution is to 0.1° and accuracy is ±1°C. The time-of-day clock shows the time to the exact minute. AA replaceable battery. Size is 41/4 x 2 1/4 x 1 1/2 in. and weight is 2.5 ounces.