Colony Counter  “SANSEL colony counter is easy to use and allows fatigue-free and safe work-thanks to its problem-free counting mechanism: Marking the colonies on the petri dish with the marker pen activates the counter. The most time-consuming part of carrying out a microbial count is the actual counting process on petri dishes. Colony counters facilitate this task and as a result are essential in every bacteriological laboratory. Their particular advantages are the easy, rapid and reliable counting of bacterial colonies with very simple handling.”