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6 tests of each:
eXact® pH+ Multi Probe (pH
Contains 30 tests
• Check paper quality on security documents
WaterWorks™ Hydrogen Sulfide High Range Multi-Parameter 6 tests of each:Check your Hydrogen Sulfide levels with confidence using our WaterWorks Hydrogen Sulfide High Range Check. Contains 50 strips. WaterWorks Hydrogen Sulfide test strips for water quality testing are the ideal solution when portable, reliable results matter. Designed to be safe, no technical training is required to achieve results. Get results in only a few seconds (1 second dip time!) Range: 0, 5, 10, 20, 30, 40, 50, 60, 80 ppm (mg l) Safe, non
