Hygiena™ InSite Listeria is an easy-to-use, self-contained, environmental Listeria species test. Each device contains a chromogenic liquid media formulated with antibiotics, growth enhancers, and colour-changing compounds specific to Listeria species. Simply swab the test area and wait. A change in colour after 24-48 hours of incubation is considered presumptive positive. No expensive lab equipment is required and no additional sample handling of the sample is necessary. Eliminate the lengthy wait time for outside lab results and get ahead of contamination issues.