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Designed for taking particle counts for HEPA and ULPA filter surfaces. Fan shape with 4" opening samples a larger surface area than standard probes. LED and built-in beeper indicate detection of particles.
Beep alarm mode allows for a beep per particle or per increments of any value set in the counter. Set at every 10, 100, or 1000, etc. particles.
Also available without the electronic interface.
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