These linear reciprocating shakers feature digital speed selection from 25 to 250 rpm with a soft start. Four adjustable rubber cushioned horizontal securing bars with quick release handles on the cradle-type platform allow you to fit nearly any size flask, bottle, or beaker. Secure up to twelve 250-mL, nine 500-mL, four 1-L, or two 2-L vessels.

Easily set digital timer from 1 to 999 minutes. When timer reaches zero, the shaker automatically stops and sounds an alert. Shaker is capable of continuous use, and the microprocessor maintains speed accuracy over long runs.