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Essentials LAB Buffer pH – Meter Calibration Solution

Essentials LAB Buffer pH – Meter Calibration Solution

Regular price £3.90
Regular price Sale price £3.90
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£15.60 per litre · 250ml - pH 4

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Spend £95.10 more for free delivery

pH
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Free express delivery over £991–2 working days
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Description

Keep Every pH Reading Honest

Essentials LAB Buffer pH solutions are calibration fluids for checking and adjusting a pH meter's accuracy, sold as matched pH 4 and pH 7 references so a meter can be calibrated against two points rather than one. Essentials is VitaLink's own entry-level brand, matching the same trusted formulation behind VitaLink's own buffer solutions, and pairs directly with the Essentials pH Meter already in the HCS range.

A meter drifts over time, especially with regular use in nutrient solution, and calibrating against a known buffer is the only way to know a reading is actually correct rather than just consistent. Running both a pH 4 and pH 7 buffer gives a proper two-point calibration across the range most growers actually work in.

  • Matched pH 4 and pH 7 buffer solutions for genuine two-point meter calibration
  • Same formulation lineage as VitaLink's own buffer solutions
  • Pairs directly with the Essentials pH Meter and other digital pH pens
  • Keeps feed dosing accurate by keeping the meter reading it against honest

How to Use

  • Calibration: dip the probe in pH 7 buffer first, then pH 4, following your meter's calibration routine
  • Frequency: recalibrate regularly, especially with daily nutrient-solution use

Technical Specifications

  • Type: pH calibration buffer solution
  • Use: pH meter and pen calibration
  • Calibration: two-point with pH 4 and pH 7
  • Storage: 5 to 25°C, upright, out of sunlight

FREE Express Delivery on orders over £99. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.