OHAUS Dial O Gram™ and Cent O Gram™ 300 Series Mechanical Scales & Balance Model:310 00 The narrow sack sampler (25mm) The narrow sack sampler (25mm) is ideal for free flowing powders and for small products like pepper corns and small grains whereas the large diameter sampler (45mm) is more suited to sampling larger products like nuts and beans Valor 2000 offers large LED front and rear displays Extremely Precise Mechanical Balance with High Readability The Cent O Gram and Dial O Gram balances offer the accuracy and convenience of an integrated weigh below balance while allowing students to visualize mass measurement principles