ProScan provides a very simple, quick way for fishkeepers to test their water, even if you've never done it before. 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. Key Features: Water analysis and diagnosis via smartphone: easy and safe control of the water values in freshwater aquariums. For the measurement of: general hardness, carbonate hardness, pH value, nitrite, nitrate, chlorine and CO2 calculation The new generation of water analysis: download ProScan app free of charge, insert test strip into aquarium water, position strip on colour chart for analysis, scan colour chart, values are determined Fast diagnosis – precise results: test value results are displayed as numbers and additionally evaluated (good/medium/poor). Additional recommendations for optimal values in freshwater aquariums and ponds Compatible with iPhone and iPad: iOS 5.0 or higher, Android 4.0 or higher and a camera with autofocus needed. 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. Contents: 24 water analysis strips, 1 ProScan colour chart, 1 ProScan app for free download