📌 L’importanza della calibrazione dei pennini (pH ed EC)

Many cultivation problems do not depend on fertilizers, but on instruments that measure incorrectly.
pH and EC probes should be calibrated regularly because, over time, they can lose precision. Even a deviation of a few tenths of a pH can reduce nutrient absorption, causing deficiencies or nutrient lockouts. Similarly, an uncalibrated EC meter can lead us to fertilize too much or too little.

When to calibrate?

• Before first use.
• Every 2-4 weeks (or more often if used frequently).
• After long periods of disuse.
• If measurements seem unusual or inconsistent.

Also remember to always rinse the probe with distilled water after use and, for pH, to store it in the appropriate storage solution: letting it dry reduces its precision and can damage the sensor.

A calibration takes only a few minutes, but can prevent weeks of plant problems.

I can only agree with you! I also recalibrate my tester every 14 days or so.

I calibrate every 2-3 weeks as well.