Compact and space-saving laboratory shaker in changeable rotary and reciprocate motion for mixing, extracting and stirring of samples. Digital display of shaking frequency. Equipped with shaking timer. Easy to assemble and remove accessories. Various shaking modes when used with different shaking stages and racks. Can be placed inside IN-604W incubator for shaking incubation. Shaking frequency 20~200 rpm, random adjustment. Shaking range 30mm.