Hanna GroLine 1413 uS/cm Conductivity Standard (20mL Sachet)

The GroLine 1413 µS/cm Conductivity Standard Sachets offer portable and precise calibration for conductivity measurements. Each sachet contains a single-use, pre-measured solution ideally suited for hydroponics, aquaponics, or greenhouse applications. Accuracy is comparable to NIST standards, ensuring reliable calibration in the field. Packaged in light-blocking foil pouches, the sachets preserve solution integrity and include lot number and expiration dates for full traceability. Compact and lightweight, they fit easily in your pocket or instrument kit—ready to use wherever you go.