When your weighing needs require gram accuracy, the SR300 Series is the right tool for the job. Available in two different weight ranges, the SR300 Series can handle a variety of tasks from nutritional portion measurements to sub-gram measurements for tracking neonate diaper output. Constructed of high impact plastic the SR300 Series is as durable as it is functional. The SR300 Series is available in a 2000 gram weight capacity with 1 gram resolution (model SR300 ) and a 200 gram weight capacity with a 0.1 gram resolution (model SR310 ). Whatever your weighing needs may be SR®Scales is “The measure of Excellence” SR300 - 2000 grams x 1 gram resolution SR310 - 200 grams x 0.1 gram resolution Battery Operated - 4 “AA” batteries Auto Power Down (APD) approximately 120 secondsord systems Optional AC Power Supply*