![]() ![]() Long-life red and black felt-tip markers, a protective storage case, and a 3V lithium battery are included. ![]() The display has a backlight for easy viewing in low-light conditions, the audible alert can be turned off if desired, and the counting function can be locked to prevent error during breaks between counting. Able to store up to 35 sample counts in its memory, it can also display the sum total of all colonies counted. Error is further reduced by the ability to count both up and down to verify sample counts. ![]() The lightweight, comfortable to hold, pen-style design reduces the likelihood of error, combining all aspects of counting into one motion. It marks, counts, and gives an audible and visual alert each time a count is registered on the digital display. This new handheld unit enables users to count colonies of bacteria or other microorganisms grown on agar plates. ![]()
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