JBL ProScan is a multi water test with diagnosis of the water values with your Smartphone. The result is evaluated and, where necessary, instructions are displayed to show how to optimize the water values. The appropriate smartphone app is available free of charge.JBL ProScan+ photometric analysis and diagnoses of the water values with an smartphone+ 24 Water Analysis Stripes+ for pH, GH, KH, Nitrite, Nitrate, Chlorine+ calculating of the CO2 content+ for frehswater, garden pond water, tap water+ Analysis stripes are available as JBL ProScan RechargeThis is how it works:Download the JBL ProScan App, free of charge, onto your smartphone (Apple iOS and Android). Start the app and enjoy the fast read out, precise analysis and innovative technology. Theres never been anything like it for the analysis of water values. Using the especially calibrated JBL ProScan Color Card enclosed, please follow the instructions in the app. You can choose between the following analysis modules:Aquarium F