The ADEY ProCheck® App has been designed to work with the ADEY ProCheck Test Kit (sold separately) to provide heating engineers with a quick and easy method of testing central heating system water quality in the home using a smart phone. ADEY ProCheck's step by step process provides instant validation of system health, testing for the main parameters affecting system water quality. It gives instant results for Inhibitor, Corrosion and pH levels. Results are displayed within the app, offering rec