EE1431200 - Cole-Parmer Digital Colony Counter, 90-240VAC,50/60 HZ

Individual or multiple plate counting using white or black light
Audible count confirmation, adjustable pressure sensitivity, and option for light/dark background 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
Connects to a printer or computer to record individual or average plate counts
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.