We offer three major biological tests: Coliform, E-coli and one non-specific, Total Microbe. The main benefit of our Total Microbe test is that it indicates the presence/absence and activity count of any/all aerobic and facultative bacteria, yeast, mold and fungi. If you test for a specific bacteria you may get a negative result but another pathogen may be present that a total microbe test would react to. These testers are used to test drinking, surface, ground and waste waters in a variety of settings in the field or in the laboratory. Used in conjunction with sampler kits, the microbial testers can be used to test for bacteria on surfaces. This market includes the food tests (for specific bacteria or a total microbial screen test) for food processing industry and indoor air quality testing (air duct and air filter testing). Soil & Objects sampler kits are also available.