GroLine 5000 µS/cm Conductivity Standard with Certificate (120mL Bottle)

Calibrate your EC/TDS meters with confidence using this NIST-traceable 5000 µS/cm conductivity standard. Prepared with high-purity potassium chloride under ISO-compliant processes—including certified glassware and precise calibration with NIST SRM—it ensures exceptional accuracy. The 120 mL bottle comes sealed and tamper-proof, with clear lot and expiration date markings for easy traceability. A printed temperature compensation chart simplifies calibration across varying conditions. With an extended unopened shelf life of up to five years, this solution is perfect for laboratory, greenhouse, hydroponic, or field use.

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Key Highlights

• Standardized at 5000 µS/cm for reliable EC/TDS meter calibration

• NIST-traceable, crafted under strict ISO-standard preparation

• Clear lot and expiration dates plus a temperature compensation chart

• Secure tamper-proof, airtight packaging ensures solution integrity

• Long shelf life—up to 5 years when unopened