Compass Solutions Wide Range pH Indicator 4.0–10.0 Test Kit

Get fast, clear pH readings across a wide 4.0–10.0 range with the Compass Solutions Wide Range pH Indicator Test Kit. Just add a few drops, mix, and match the color to the included chart — no calibration, batteries, or electronics required.

• Wide pH Range 4.0 to 10.0: Liquid indicator develops a distinct color across the full range, making it easy to compare samples against the included color chart in 0.5 pH increments.
• Approximately 150 Tests per Bottle: One 30 mL bottle provides approximately 150 tests at 3 to 6 drops per test, offering a low cost per test compared to single-use test strips.
• Simple Three-Step Test: Fill the capped sample vial, add 3 to 6 drops, mix gently, and compare the color to the chart.
• Complete Testing Kit: Includes one 30 mL bottle of Wide Range pH Indicator with attached dropper tip, one reusable 30 mL capped sample vial, and one pocket-size color chart with directions.
• Versatile Water Testing: Suitable for freshwater aquariums, ponds, pools and spas, hydroponic nutrient solutions, prepared soil extracts, and classroom or laboratory samples.

What's Included

• 1 × 30 mL Wide Range pH Indicator (dropper tip)
• 1 × Reusable 30 mL capped sample vial
• 1 × Pocket-size color chart with directions

Storage & Shelf Life

Store capped at room temperature away from direct light. Shelf life: 24 months from date of manufacture.

Kit contents: 1 × 30 mL Wide Range pH Indicator solution with dropper tip, 1 × reusable 30 mL capped sample vial, 1 × pocket-size color chart with directions. See SDS for full composition.