Cole-Parmer Digital Colony Counter; 90 to 240 VAC, 50/60 Hz

This colony counter registers a count each time you press a felt tip marker to the petri dish. Cumulative count may be read on the digital display and is confirmed by an audible tone (can be turned on or off). Adjust the pressure required to measure a count—suitable to each user.

Product Highlights:
-Audible count confirmation, adjustable pressure-sensitivity increases flexibility
-Read individual plates or calculate an average over multiple plates
-Compatible with felt tip markers for pressure-sensitive counting
-Energy-saving bright-white, LED light source
-Antimicrobial coating provides additional protection