If you purchased a hydrogen-rich water bottle but find yourself skeptical about its effectiveness.Our Hydrogen Water H2 Testing Kit is designed to provide precise and accurate measurements of hydrogen concentration in your water after using hydrogen wtaer bottle generator. With this hydrogen water testing kit, you can easily and accurately measure the hydrogen content, ensuring that their investment in a hydrogen water bottle is worthwhile and beneficial. Our hydrogen water tester drops is suitable for hydrogen bottle, hydrogen generator, hydrogen water bottle, hydrogen water generator, hydrogen bottle generator, hydrogen water machine, hydrogenated water bottle, hydro water bottle, hydrogen water pitcher, hydrogen water system. How to Use:Step 1: Pour 6ml of water sample into the test tube;Step 2: Add blue testing agent drops and stir;Step 3: If the water turns transparent from blue, repeat;Step 4: Record the number of drops until the water remains blue.Hydrogen Concentrationrecorded drops*100ppbPackage Includes:1 x Hydrogen Water Tester for Hydrogen Water Cup1 x Test TubeNotes:If the water tums blue or light blue on the first drop, it's not hydrogen-rich water.