This Blue-M Magni-Whirl MW-1120A-1 features Blue-M's patented agitation system, which provides faster agitation, greater dependability, long life and low maintenance. Variable rocking motion of agitator provides gentle, quiet agitation and circulation throughout the bath. From 5C above ambient to 100C within +/- 0.2C. Constant Temp. 34L (9 gal) capacity. With water agitation (using magnet mechanism). Can be used as a serological bath. NOT recommended for use in sous vide cooking, since it's used and although we sanitize as part of our overhaul, we cannot guarantee sterility suitable for human consumption.