GroLine 1413 µS/cm Conductivity Calibration Standard Sachets (25 x 20mL) food quality refractometer A fresh filter means consistent

A fresh filter means consistent reduction of contaminants — don’t let an expired filter give you false confidence

No pumping or external power required

Hanna GroLine HI981412-00 pH Dosing System - Automated pH Control for Pools

Battery Life: ~100 hours continuous use (batteries included)

GroLine 1413 µS/cm Conductivity Calibration Standard Sachets (25 x 20mL) food quality refractometer A fresh filter means consistentHI70031G Premium 1413 S cm Conductivity Calibration Standard Professional grade conductivity solution designed for hydroponics, aquaponics, greenhouses, and laboratory applications. Single use sachets deliver convenience, accuracy, and portability for on the go testing. Key Features & Benefits NIST Traceable Accuracy: Standardized with potassium chloride NIST 2202 SRM in deionized water per ISO 3696 BS3978 Certificate of Analysis Included: Each lot