The First Alert Drinking Water Test Kit tests for elements in your drinking water system that can lead to serious health problems. It tests and provides immediate results for: Bacteria--Strains of E. coli can cause serious illness or death. Lead--Causes developmental harm, neurological damage, and kidney damage. Pesticides--From agricultural uses, linked to increased cancer rates. Nitrates/nitrites--From fertilizers and animal waste, causes developmental problems. Chlorine--By-products can increase cancer risk and cause bad taste and odor. Hardness--Causes lime scale and higher detergent use. pH--Can cause heavy metal (such as lead) leaching and plumbing damage. The Water Test Kit tests to EPA standards. The kit includes all testing materials; no further lab work is required for results.--Bree NorlanderWhat"s in the Box One bacteria test vial, one lead/pesticide test packet, one nitrate/nitrite test packet, one pH/hardness/chlorine test packet, and user"s manual