New 16 in 1 test strips: our test kit tests the following tests: total alkalinity - pH - hardness - lead - iron - chromium / CR (VI) - bromine - nitrate - fluoride - VC - calcium - free chlorine - total chlorine - carbonate root - acid cyanuric Quick and easy test: just dip a strip in drinking water for 2 seconds, then remove the test strip and hold it horizontally for 60 seconds, then compare it to the chart for reference. It is not necessary send specimens or go to the lab Application: Test strips for testing drinking water, household faucets, well water, freshwater swimming pools and more water quality testing. For healthy use, please use the professional test strips to detect water quality standards Practical and economical: each bottle includes 100/50 test strips. So you don't need to spend a fortune to test the waters. Test strips offer an affordable option for water testing on a budget and can provide important information on water quality and safety