TestDrop Pro

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TestDrop Pro - Changing the world

Lishtot  is proud to be one of TIME Magazine’s 2018 Genius Companies. Lishtot Products help people in more than 50 countries all over the world. The TestDrop has been tested by third party labs and it found reliable and accurate. 

Main Features

  • Immediate Results - Test water and get the results in two seconds

  • To Drink or Not to Drink? - Get a Blue light if the TestDrop Pro does not detect contamination and a Red light if contamination is found. It is not recommended to drink water that gives a Red light

  • Tests for more than 20 contaminants - Including E.coli, Lead, Copper, Arsenic, PFAS, PFOS and more

  • Test Water in Any Plastic Disposable Cup - You can use PP, PET or PS clean, new, disposable cups for testing LEARN MORE>

Watch TestDrop's Users


  • Detects Good Water - The embedded algorithm is programmed to show Blue when the sensor detects uncontaminated water. Otherwise it shows Red.

  • Three Buttons for Three Testing Levels - Each button is programmed to show Blue at a different level of water purity LEARN MORE>>

  • Test Water in Any Plastic Disposable Cup - You can use PP, PET or PS clean, new, disposable cups for testing LEARN MORE>>

  • Test in Non-Transparent Cups - The disposable plastic cup does not have to be transparent LEARN MORE>>

  • Test Bottled Water - You can test bottled water without opening it LEARN MORE>>

  • Do Not Test in Glass Containers - Glass cups are thicker than plastic. Also, when you wash your dishes the soap leaves residue which is detected as contamination.

  • Innovative Technology - 3 granted US patents

  • Passive Testing - The TestDrop Pro does not transmit any signal, it senses the electric field created by the interaction between the water and the cup

  • Tested by Third Party Labs - Validated by independent third party labs along with many other people and companies

  • Lishtot App (Beta) - Get your water score and historical data about the water you tested

  • Battery Has a Long Life Span - Uses standard 2032 Energizer battery which lasts for 5000 tests

  • Take it With You Wherever You Go - Portable, key-chain size device goes with you everywhere you go

  • Test for Heavy Metals - Including lead, copper, arsenic, cadmium and more

  • Test Pathogenic Bacteria - Such as E.coli by detecting the proteins they release in the water

  • Test for Chemicals - Such as PFOS, PFOA and pesticides

  • Easy to Use - Watch our 2 minute video and become an expert tester.WATCH NOW