Ensure accurate pH measurements in your hydroponic or nutrient solutions with this pH 4 Buffer calibration solution. Ideal for calibrating pH meters and pens, Nutrifield pH 4 Buffer provides a stable, reliable reference point to guarantee your meter reads correctly. Accurate calibration is essential to maintain optimal nutrient absorption and prevent deficiencies in plants. Regular calibration ensures your hydroponic system remains within the ideal pH range for healthy growth. Features Standardised pH 4.00 solution: Provides a precise, known pH value for calibration. Essential for meter accuracy: Use to calibrate pH probes and pens; if a meter doesn’t read 4.00, it requires recalibration. Supports healthy nutrient uptake: Ensures nutrient solutions stay within optimal pH range for plant absorption. Easy to use: Simply immerse the pH probe into the buffer solution to calibrate. Compact 250 mL bottle: Ideal size for small to medium grow setups or personal use. Why You Should Buy Accurate pH readings are a foundation for healthy hydroponic growth — and that starts with properly calibrated equipment. Nutrifield pH 4 Buffer gives you confidence that your pH meter is reading correctly, which in turn helps you maintain nutrient solutions in the optimal range. This reduces the risk of nutrient lockout and ensures your plants get the minerals they need. It’s an inexpensive but vital tool for both hobbyists and serious growers. FAQs Q: Why do I need a pH 4 buffer solution?A: pH 4 buffer is used to calibrate pH meters and pens. Since it has a fixed, known pH, your device should read exactly 4.00 — if not, it needs recalibration. Q: How often should I calibrate my pH meter with this buffer?A: Weekly for heavy use or professional setups, and monthly for hobby use. It’s also recommended whenever accuracy is critical, like before mixing nutrient solutions. Q: Is this solution suitable for hydroponic nutrient testing?A: Yes — it's specifically formulated to help calibrate pH meters used in hydroponic systems, where pH precision is essential. Q: How do I use the buffer safely and correctly?A: Pour a small amount into a clean container, immerse the meter probe, calibrate according to your device's instructions, then discard the used solution.
