CF Calibration Fluid

VitaLink CF Calibration Fluid is a reference solution for calibrating EC (electrical conductivity) meters used in hydroponic and soil-based cannabis cultivation. Precise EC measurement is essential for maintaining correct nutrient solution concentration — too high and you risk nutrient burn; too low and plants will be underfed.

The CF (conductivity factor) reference standard in this fluid has a concentration of CF 28 — equivalent to EC 2.80 and approximately 1820 PPM at 20°C. Before using your EC meter, dip the probe in calibration fluid and adjust the meter's reading to match the known value, ensuring accurate readings when measuring your nutrient solution.

EC meters drift over time and require regular calibration to maintain accuracy. Use VitaLink CF Calibration Fluid as part of routine meter maintenance, typically before each grow cycle or whenever measurements seem inconsistent. Part of VitaLink's Essentials monitoring range, designed to complement their EC meters and provide everything needed for accurate growing environment management.