Escali L600 L-Series High Precision Professional Lab Scale, 600 Gram/0.1 Gram Manufacturers one year warranty. Highly accurate, easy-to-use digital scale for high-precision weighing Measures in grams, ounces, grains, carats, pennyweights, and troy-ounces Hold feature; tare feature subtracts a container's weight Automatic shut-off for longer battery life; stainless-steel removable top 4 AA batteries are included; measures eight by 5-3/4 by 2-1/2 inches