Bluelab 2.77 EC Conductivity Standard Solution 250ml

Accurate EC readings depend entirely on the reliability of the meter taking them, and a meter is only as reliable as its last calibration. Over time, probe surfaces accumulate residue and mineral buildup that gradually skews readings away from true values, often without any obvious sign that drift is occurring. Calibration solution is the only way to confirm a meter is reading correctly and to bring it back into accurate range when it isn't.

This Bluelab solution is calibrated to a precise 2.77 EC reference value, providing a reliable benchmark for checking and calibrating EC and conductivity meters. Regular calibration, combined with proper probe cleaning, maintains the accuracy of EC readings over the working life of a meter, which is directly tied to nutrient dosing accuracy in any hydroponic system. Supplied in a 250ml bottle.