Labtron manufactures the Manual Colony Counter, a benchtop instrument designed for agar plate colony enumeration in microbiology, food safety, environmental, and pharmaceutical testing laboratories. It supports colony counting from 0 to 999 and accommodates Petri dishes ranging from 50 to 150 mm. Adjustable magnification from 3× to 9× assists colony observation and differentiation. A pressure-sensitive counting pen, LED display, audible confirmation, and LED illumination support routine plate counting and microbiological analysis workflows.