JBL ProScan Smartphone Water Test Kit (24 Tests)

Simply press the start button on your phone, then dip one of the ProScan test strips into your aquarium for a few seconds. Position the test strip onto the ColourCard and wait until the displayed time has expired. Now scan with your smartphone and the app will summarise your water parameters, including a note of any readings that might require attention. ProScan provides a very simple, quick way for fishkeepers to test their water, even if you've never done it before.