pH Test Kit 4-10 — Reliable Economical Liquid pH Indicator

pH Test Kit 4-10 — Reliable Economical Liquid pH Indicator for Hydroponic Solutions

Having the correct pH level is essential for maximising nutrient uptake — consistently incorrect pH leads to deficiencies and slower growth. These test kits are a reliable economical way of measuring pH. Very easy to use: half-fill the test vial with the solution you'd like to measure, add the indicator solution, and compare against the colour chart. Covers pH range 4-10, which spans the entire hydroponic growing window.

Why growers choose this pH Test Kit:

• Reliable economical pH measurement — accurate enough for most home growing
• Easy to use — half-fill vial, add indicator, compare colour
• pH 4-10 range — covers entire hydroponic growing window
• No batteries required — works on chemistry, not electronics
• No calibration needed — chemistry references don't drift like meters do
• Backup for digital meter checks — verify your digital pH meter's accuracy
• Affordable entry to proper pH measurement — much better than guessing

Who it's not for:

For precise digital readings (0.01 pH resolution), step up to Bluelab pH Pen, Essentials pH Meter, or similar electronic meters. Colour comparison is subjective — readings between 6.0 and 6.5 can be hard to distinguish exactly. For commercial-scale or research use, digital instruments give numerical precision. Test kits use less convenient than dipping a pen, but they're reliable and don't need calibration. Replace solutions periodically — indicator chemistry can degrade over time.

In stock now — ships same working day from our Staffordshire warehouse with free UK delivery over £100. Pick up in-store at our Stone shop (ST15 0SR) if you're local, or click & collect at checkout.