Complete and accurate instant water test available to the consumer. Tests the following: bacteria, lead, nitrate, nitrite, iron, total chlorine pH (potential hydrogen), total hardness, total alkalinity, and copper. All tests are instant and do not require lab analysis. Laboratory tested for accuracy. Recommended for: home, cottage, RVs, offices, schools and especially private wells. The test indicates whether your water is hazardous to your health. If so, you should not drink the water.