Without heating. With non-mechanical, electronic inductive drive and dust / water tight housing, 100 % wear-free and maintenance-free. Ideal for batch series stirring and for use in water baths. Choice of 6-place stirring position models which can stir up to 6 x 1 L erlenmeyer flasks, 15-place models for up to 15 x 250 ml beakers (high form) and 60-place models for small sample containers and using appropriate test tube stands, up to 60 test tubes or centrifuge tubes. Control units available as price-optimized eco 10 W, high-power 20 W or ultra high-power 40W version. Preselectable mixing power. SoftStart. 3 years warranty. Made in Germany. Please order control unit separately.