Digital Colony Counter is designed for quick and accurate counting of bacterial and mould colonies in petri dishes. Feature packed & easy to use, this is an indispensable bench top tool for the busy microbiologist. It is designed for rapid and accurate counting of bacterial and mould colonies. Simply place the pertri dish on the illuminated pad and touch the dish with the pen provided to mark each colony in turn. This causes a count to be registered on the digital display and audible tone confirms each count made. Marking the dish with the pen avoids missing colonies or double counting. The digital count on the display can be reset manually any time by pressing the RESET key provided. Optimum viewing of colonies is aided by peripheral glare-free illumination. An integral magnifying glass provides for easier counting of small colonies.