The ANDalyze DNAzyme-based heavy metal testing products are a system of hand-held fluorimeter and consumable sensors that test for heavy metal concentrations in water, which provides results in less than one minute. The system currently tests for lead, copper, uranium, mercury, zinc and cadmium. Measuring metal ions is done through a reaction occurring when a water sample containing a target metal ion contaminant (i.e. lead) is introduced to an analyte-specific DNAzyme sensor.