When your weighing needs require gram accuracy, the SRV300 Series is the right tool for the job. Available in two different weight ranges, the SRV300 Series can handle a variety of weighing for small aninimals and nutritional portion measurements. Constructed of high impact plastic the SV300 Series is as durable as it is functional. The SRV300 Series is available in a 2000 gram weight capacity with 1 gram resolution (model SV300) and a 200 gram weight capacity with a 0.1 gram resolution (model SRV310). SRV300 - 2000 grams x 1 gram resolution SRV310 - 200 grams x 0.1 gram resolution Battery Operated - 4 “AA” batteries Auto Power Down (APD) approximately 120 seconds Optional AC Power Supply - see product brochure for details