OS40L Overhead Stirrer 40L includes: stand & IPS2050-P-S4, 100V to 240V w/EU plug, Cat. No.: BM-IPS2050-40-E, Benchmark’s Overhead Stirrers feature high torque and advanced digital microprocessor control for smooth mixing of low and medium viscosity samples. Speed and run time are accurately set and monitored on the LCD screen. Both the 20L and 40L capacity models are supplied with a 4 arm stainless steel propeller, additional steel and Teflon accessories are available. A feed-through chuck holds accessory shafts firmly in place and is easily tightened and loosened without tools. LCD control panel, Includes complete stand assembly, Compact and quiet, Digital accuracy and convenience