The H2Blue Hydrogen Test Reagent measures the concentration of dissolved hydrogen gas in water produced by various H2-generating technologies. These technologies include hydrogen infusion machines, tablets, ionizers, sticks, bubblers, reactor cartridges, and drops. The test can accurately test for H2 waters in a pH range of 4–11, but it's recommended for use in a pH range of 7–9.5. Free shipping!

• Easy to use test drops for measuring the Hydrogen concentrates dissolved under its own pressure into a water state.
• Each drop represents 0.10 PPM (100 PPB) of Hydrogen gas dissolved under pressure into a water state using a 6 ml sample of water in the plastic beaker included.
• Best way to test how efficient your Hydrogen Water Machine dissolves the H2 into a concentrate in water. Not intended to measure H2 in water that is not dissolved under its own pressure. Hydrogen concentrates are measured by calculating in PPM measurements. .Contains approximately 400 drops and good for 25 to 40 tests depending on levels achieved.
• We sell these test drops because unlike others, we want you to test our Hydrogen Water Makers for their performance. We only ask that you contact us immediately if you get results that are not in the range we specify for the product.