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Frequency Counters

Frequency Counters

Digital and analog devices that measure the frequency of repetitive cycles and/or electrical signals; may be hand-held.
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Fisherbrand™ Counter-Pen/Colony-Counter

Combination marker/digital counter suits both laboratory and plant use

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Fisherbrand™ Digital Key-Chain Wristband Counter

Lightweight and easy to use Digital Key-Chain Wristband Counter.

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