General Hydroponics pH Test Indicator Kit - 1 fl oz - Test Tube and Color Chart Included

Drop-and-Compare pH Testing for Nutrient Solutions - 1 fl oz

Nutrient solution pH drifts, and plants take up nutrients less well when it moves out of range. This kit gives you a simple way to check it: add a few drops of indicator to a sample, then compare the resulting color to the included chart. The indicator reads across a pH range of 4.0 to 8.5, so you can see whether your solution needs adjusting.

The 1 fl oz kit suits home gardeners, hobbyists and small hydroponic setups that want a low-cost way to check pH. It also works as a quick backup check beside an electronic meter in larger indoor cultivation spaces.

Key Features & Benefits

• Color-comparison testing — read the result against the chart without electronics or calibration.
• pH 4.0 - 8.5 range — covers a broad span of nutrient solution conditions.
• Complete kit — includes the indicator, a test tube and a pH color chart.
• Concentrated indicator — a few drops make up each test.

Who Should Use General Hydroponics pH Test Indicator Kit

Growers running hydroponic systems or mixing nutrient solutions who want a simple, affordable pH check. It suits beginners learning to manage pH and experienced growers who want a second reading.

About General Hydroponics pH Test Indicator Kit

General Hydroponics makes this liquid pH indicator kit. Each kit contains one 1 fl oz pH Test Indicator, one test tube and one pH color chart. It is sold each.

Frequently Asked Questions

Q: How do I use the kit?
A: Fill the test tube with a sample of your nutrient solution and add a few drops of indicator. Compare the color that develops to the included chart to read the pH.

Q: What pH range does it test?
A: It tests from pH 4.0 to 8.5. That range is wide enough to show whether your solution is too acidic or too alkaline.

Q: What do I do if the pH is off?
A: Adjust the solution with a pH adjuster, then test again. General Hydroponics sells pH Up and pH Down separately for this purpose.

Q: How does an indicator kit compare with an electronic meter?
A: An indicator kit needs no batteries or calibration and costs little, but you judge the result by eye against a chart. Electronic meters give a numeric readout. Many growers use both.

Q: What does pH measure?
A: pH measures how acidic or alkaline a solution is on a scale of 0 to 14. In hydroponic systems it affects how well plants can take up nutrients.