Happy Harvest calibration fluid pH 4.0 Extractor Fan and infrared reduction beats the

and infrared reduction beats the heat

It needs 3 x AAA batteries (not included)

Works as supplemental lamp or used throughout the full growth period

making it an ideal choice for commercial growers or serious hobbyists

avoid application close to harvest

Happy Harvest calibration fluid pH 4.0 Extractor Fan and infrared reduction beats theHappy Harvest Calibration Fluid pH 4. 0, the precision solution to keep your pH meter finely tuned for optimal performance in the cultivation of your prized plants. The calibration fluid is designed to ensure accuracy and reliability in every reading, allowing you to maintain the ideal pH levels critical for robust plant growth. Instructions for Use: Pour a small amount of calibration fluid into a clean container. Submerge the pH meter's probe into