Eppendorf M1353-0002 Excella E25 Console Incubator Shakers, 230V, 50" W x 30.5" D x 41.7" H Floor model digital incubated and, depending on the model, refrigerated orbital shaker uses 120V at speeds between 50 to 400rpm for uniform mixing with a smooth continuous circular motion Continuous or timed shaking between 0.1 to 99.9 hours with audible and visible alarms for ease of operation Orbital motion range of 2.5cm/1" to ensure even mixing and a large window for easy viewing of samples Three-digit LED indicates shaker status, speed, temperature, setpoints, and time remaining for clear readings Accommodates test tubes or up to 4 x 6L flasks in a tightly-sealed growth chamber