Overview
A calibration solution with a fixed pH of 4.00, used specifically for calibrating pH meters, monitors, and controllers.
Feature Highlights
Precise Fixed Value — Set exactly to pH 4.00 for accurate meter calibration.
Specs
Usage & Dosage
Use per your meter/controller's calibration instructions.
Compatibility & Warnings
Compatible with any standard pH meter, monitor, or controller. Calibration solution only — not for direct application to plants or nutrient solutions.
