Counting Pens

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Counting Pens There is 1 product.

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  • Control Company 3133 Counter-Pen™ The ideal cell growth colony counter Combination marker and digital counter designed for the lab and plant. Sound and count occur simultaneously when black mark is made with felt-tipped pen. Essential for counting cell growth on petri dishes, inventory parts, and tally samples received. Pen marks hold place if interrupted...

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