Keep your pH meter accurate and reliable with this standardised pH 7 buffer solution. Nutrifield pH 7 Buffer provides a known reference point at neutral pH to calibrate your meter — a critical step for ensuring nutrient solutions stay within the ideal range for plant uptake. Regular calibration helps avoid nutrient lock‑out and ensures stable growing conditions in hydroponic, coco, or water‑based systems. Features Standardised pH 7.00 solution — gives a precise, neutral reference for calibration. Essential for meter accuracy — verifies that your pH probe or pen reads correctly, especially when used with a pH 4 buffer to ensure full‑range accuracy. Supports optimal nutrient absorption — accurate pH readings help maintain nutrient solutions in the correct range for root uptake. Easy to use — simply immerse the meter’s probe in the buffer solution to calibrate. Convenient 250 mL size — compact volume ideal for hobby and small-to-medium hydroponic setups. Why You Should Buy Proper pH calibration is fundamental for healthy plant growth in hydroponics. pH 7 Buffer is the essential neutral standard that, when used regularly, ensures your meter readings remain accurate. Maintaining correct pH levels helps plants absorb nutrients efficiently and avoids issues like nutrient deficiencies or burn. This affordable calibration solution is a wise investment to preserve plant health, yield quality, and overall grow consistency. FAQs Q: What is pH 7 buffer used for?A: It’s used to calibrate pH meters — providing a neutral, known‑pH reference point so your meter can be trusted for accurate measurements. Q: How often should I calibrate my meter with pH 7 buffer?A: Best practice is to calibrate regularly (e.g. weekly or before each nutrient batch), especially when using hydroponic nutrient solutions or when precision is important. Q: Can I just use any water instead of buffer?A: No — buffer solutions are specially formulated to maintain a stable, known pH. Plain water does not offer a reliable calibration reference and can drift, leading to inaccurate readings. Q: Is pH 7 buffer enough on its own?A: For best accuracy, it’s recommended to use pH 7 buffer together with a pH 4 buffer for a two‑point calibration, ensuring accuracy across the full pH range commonly used in hydroponics. Q: Will this help with nutrient solutions?A: Yes — proper calibration with pH 7 buffer helps ensure nutrient solutions are mixed and maintained at optimal pH, supporting efficient nutrient uptake and healthy plant growth.
