HANNA GroLine Quick Calibration Solution for GroLine pH and EC Meters (120 ml)

Optimize both pH and conductivity calibration in one efficient step with this dual-purpose solution. Designed for use with GroLine pH and/or EC/TDS meters using the Quick Cal function, it contains pH 6.86 buffer and 5,000 µS/cm conductivity standard in a single bottle. Each 120 mL container is hermetically sealed to preserve freshness, clearly labeled with its lot number and expiration date for traceability. With a precision of ±0.02 pH, this solution is produced under strict ISO standards using high-purity components. Unopened bottles remain reliable for up to five years—perfect for both field and lab use.

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Key Features

• Dual-action formula: one-point calibration for both pH 6.86 and EC (5,000 µS/cm)

• High accuracy: ±0.02 pH

• Airtight, tamper-proof packaging protects solution quality

• Clearly marked with lot number and expiration for traceability

• Manufactured to ISO standards with premium-grade ingredients

• Up to 5-year shelf life when unopened