Bluelab 2.77 EC Conductivity Standard Solution – 250 ml / 8.4 fl oz mineral water stick People choose the PRO+ pH

People choose the PRO+ pH Meter to improve the accuracy of their pH testing program

Manufactured in Romania by Hanna Instruments to exacting standards

Double Junction Design: Dual reference junction creates an additional barrier between the reference electrolyte and your sample — preventing contamination and dramatically extending probe life when testing samples with proteins

Replacement for HI1294D - Fully compatible with HI9814 meter

Weight: 198 g (7 oz

Bluelab 2.77 EC Conductivity Standard Solution – 250 ml / 8.4 fl oz mineral water stick People choose the PRO+ pHConductivity standard solution a must in every grower's toolbox Features: Contain 1 bottle 250 ml 8. 6 fl oz Improve EC PPM accuracy with regular cleaning Bluelab 2. 77 EC Conductivity Standard Solution is a precision calibration fluid designed for lab grade EC conductivity meters. This 250 ml bottle delivers consistent, traceable reference values essential for accurate nutrient solution monitoring and water quality testing. Use this standard to