The colony counter is the automatic bacteria inspection instrument of one kind of digital display type. It is composed by counter, probe, and count pond, etc. It is designed by CMOS integrated circuit and LED’s digital shows. The character is 13mm high and very distinct and bright. The special probe counts sensitively and accurately. The comparison between bacterium illuminated by fluorescent lamp shows clearly and also is easy to be observed in black count pond. This instrument can lighten the labor intensity and make the work with great efficiency and is extensively used in the foodstuff, drink, drug, biological product, cosmetics, hygienic articles, drinking water, life foul water, industrial wastewater, and clinical specimen inspection of bacteria number. It is also the necessity of this unit below: grand epidemic prevention stations at all levels and the hygienic control inspection of the environmental monitoring station, foodstuff the place, hospital, biological product institution, and the medicine inspection station, the business bureau, food products factory, drink factory, cosmetics factory, junior college, and the scientific research unit laboratory.
Put the culture dish on the white-light board, then open the fluorescent lamp, using probe by touching the dish to count. The number will display in an LED screen;
Write the displayed number on the paper and turn off the electrical source quickly，
seeing the number return to zero from the LED screen. Comparing the second count with the first one, the same numbers can prove to be an accurate result.
( note ) According to the bacteria count inspection procedure, when the bacteria growth number is more than 300 in the culture dish, the sample should be diluted to count again, so this instrument is a ternary scale