110g x 0.0001g Class I Analytical Balance with automatic internal calibration and a three-way easy access weighing chamber. The ATNA is one of the most compact analytical balances on the market with a footprint measuring only 11 in x 7 in. The ATNA is equipped with a built-in USB and RS232 interface for easy PC connectivity and data transfer. The high performance electromagnetic load cell combined with 8 weighing functions including Density Measurement, 9 weighing units of measure, make the ATNA the ideal high precision laboratory balance. Functions: Parts Counting, Totalizing, Dynamic and Animal Weighing, Check Weighing, Display Hold, and Percent Weighing, Density Measurement. Units of measure: grams, kilograms, carats, pounds, newton's, grains, ounces, ounces troy, & pennyweight.