This is a great little scale that will give you professional accuracy when weighing small items like brewing hops or spices. Measures in ounces, grams, dwt, & ozt with a precise resolution of .05 grams. Built in tare feature subtracts the container's weight to obtain the weight of its contents. Automatic shut-off feature ensures long battery life, and batteries are included. Also included is a 100 gram weight for calibration and a protective carrying case. Comes with easy-to-use operations manual and is covered by a 5 year manufacturers warranty. Compact and portable for easy storage or transport, measuring 4.5" x 3".