Compact and lightweight units. These stirrers incorporate electronic controls that allow the user to regulate the speed with greater precision. In addition to speed control, a limiter 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. Hanna stirrers incorporate a VCO device that will stop the motor from accelerating as soon as the load is removed. An ABS plastic housing resists most harmful chemicals in the lab. Speed range is 100 to 1000 rpm. Maximum capacity 1 liter. Size 120 x 120 x 45 mm. 120 volt. Warranty: 2 years. CSA Approved.