The Smart Brew® Starter Kit comes prefigured with exactly what's needed to start testing your water for the perfect brew! Each kit includes the eXact iDip® 525 photometer with the following eXact® Strips: Total Hardness, Calcium Hardness, Total Alkalinity, pH, Chloride, and Sulfate. Each kit is packed in a rugged and durable plastic case with secure fasteners and padded compartments. The eXact iDip® app is available to download for Free on Apple App Store and on Google Play app store on Android. Compatible with iPhone, iPad, and iPod touch with the minimum iOS system version 9.0 and Android version 5.0 with Bluetooth® 4.0.