Reciprocal Shaker LRS-A20 Labtron Reciprocal Shakers are compact, microprocessor-controlled devices with a shaking speed range of 40-200 rpm and a 20 mm shaking orbit. They feature a brushless DC motor for reliable, quiet operation and support various platforms for flasks, plates and 96-well plates. With temperature control 5-40°C, over-speed protection and an LCD display for time and speed, they are ideal for labs in molecular biology, microbiology, chemistry and more.