... It is necessary,ideal tools in modern oil,chemistry industry. Medical sanitation,ewironment-protecting,biochemistry,test analysis ... educational scientific research. Magnetic Electric Stirrer1. Simple&easy use, reliable, large capacity, LED2. ISO13485/14001/9001 ... rotationYesLED displayYes, temerature and speed indicationcapacity20-3000mlEasy to use, rich function configuration, cost efficient. Magnetic ...