Hanna Instruments HI 180 C-1 ABS plastic Light Blue Compact Magnetic Mini Stirrer with Micro Stir Bar, 137mm Diameter x 51mm Height, 100 - 1000rpm, 115 VAC, 0 to 50 Degree C

These stirrers incorporate electronic controls that allow the user to regulate the speed with greater precision. In addition to speed control, a Speedsafe mechanism will assure that the maximum speed will never be exceeded. Often, in the lab, a sample is removed from the stirrer before reducing the speed. This would cause the motor to accelerate until it is destroyed.

Available in nine colors, light yellow, light sea-green, light blue, yellow, green, dark blue, red, grey and ivory, several HI 180 stirrers can be placed on a laboratory bench with their colors helping to identify the different samples.