Hanna GroLine 5000 µS/cm Conductivity Standard — 230 mL
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✓ In-store pickup available in Peabody, MA
✓ Talk to a real grower: (978) 278-5898
✓ Heavy soils & media are local pickup only
The 5000 µS/cm (5.00 mS/cm) conductivity standard calibrates EC/TDS meters at the high end of the nutrient range — and it's the EC value GroLine Quick Cal mode works with. 230 mL bottle, supplied with a certificate.
Hanna conductivity standards are prepared to precise formulas and standardized against NIST-traceable references; lot number and expiration date are printed on the label.
