Bluelab pH Pen humidifiers the LMA-11 allows growers to

the LMA-11 allows growers to accurately manage lighting schedules

Pressure: >0

One is used to seal the barrel containing the flower bud harvest and the other for safety

Dimensions: 1

Operating Temperature Min (F) : -40

Bluelab pH Pen humidifiers the LMA-11 allows growers toBluelab pH Pen Quick pH & Temperature Readings in Nutrient Solution The Bluelab pH Pen is a compact, dependable meter for fast pH and temperature checks in nutrient solutions. Keeping pH in the right range is essential for nutrient uptakeif your solution drifts too acidic or too alkaline, nutrients can become less available to plants. Temperature matters, too, since solutions that are too hot or too cold can affect growth rate and plant structure.