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The Benchmark Scientific BR1000 BenchBlotter rocking platform shaker has a fixed speed of 12 rpm; a platform with a rubber nonslip mat that holds culture plates, media bottles, and Erlenmeyer flasks with a total weight of 5lb.; and a platform tilt angle of 8 degrees for gentle three-dimensional (gyrating) agitation. It is incubator and cold room safe, and has an allowable ambient temperature range of 4 to 65 degrees C. A platform stacker (sold separately) doubles the holding area. This shaker is used in a variety of laboratory procedures, including blot washing, gel staining, and hybridization.SpecificationsSpeed (fixed)12 revolutions per minute (rpm)Tilt angle8 degreesCapacity5lb.Operating temperature range4 to 65 degrees CPower115V 60Hz, 50WWeight3kg/6.5lb.Platform dimensions30 x 30cm/12 x 12 inchesOverall dimensions12 x 34 x 30cm/4.7 x 13.5 x 12 inches (H x W x D)H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.Laboratory shakers agitate liquids for biological and chemical procedures by repetitively moving the vessels holding the liquids. The types of vessels include glass or plastic bottles, flasks, tubes, and microplates. Shakers are categorized by the type of movement used, which can be orbital (circular), reciprocating, vibrating, rocking, waving (gyrating), rotating (rotisserie), or wrist-action. Typically a shaker will have analog or digital controls for setting the speed and sometimes also the degree of movement. Some shakers have th