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Combines a multi-function electronic counter with a Sharpie pen, for marking Petri dishes to prevent missing or double-counting colonies. Its touch controls for multiple counts, sums, counting up or down, and more, counter automatically beeps with each count—or select the LED flash mode for a visual alert of each count. Press the lock key to write with Sharpie pen without counting—makes writing count totals simple, and it easily changes colors for separate counts. Includes one fine-point Sharpie pen and weighted stand.
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Centrifuge
Tube Rotator/Rocker
