GH pH Test Indicator 8oz

General Hydroponics® pH Test Kits make measuring pH easy. Simply fill a test tube halfway with nutrient solution, add a few drops of the pH Test Indicator, and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH test kit over expensive electronic meters for its reliability and ease of use, important factors when the health of a valuable crop is at stake. Use 3 drops per 5 ml of solution. --

Technical Data

• Volume: 8 oz | Brand: General Hydroponics (GH) | Type: pH Test Indicator — liquid drop pH test solution
• Color-change indicator solution for quick visual measurement of pH in water and nutrient solutions
• Add a few drops to a water sample and compare the color to the included reference chart
• Measures in the pH range 4.0-8.5 — sufficient for most hydroponic and soil applications
• Economical alternative to digital pH meters for basic monitoring

How to use

• Add 3 drops of the solution per 5 ml of water sample and compare the color with the chart
• Use a clean, white test tube for more accurate color comparison
• Additives and colorants present in the solution may affect color accuracy — use as a general reference
• For precise nutritional management, combine with a calibrated digital pH meter
• Store in a cool place away from direct sunlight to preserve indicator accuracy