The TestDrop Pro is a personal water tester that can detect over 20 of the most common water contaminants including bacteria, chemicals, and metals in just 2 seconds. Results are immediate, with a red light to signal the presence of contaminants and a blue light if none are found. Data can be sent simultaneously to the Lishtot mobile app for further analysis and to track your testing history. Reusable for up to thousands of uses, it tests the water without even touching it. Easy to use and small enough to fit on a keychain, the tester has separate buttons for tap water, bottled water, and natural water.