Bluelab Conductivity Pen pots-and-containers a battery symbol appears on

a battery symbol appears on the LCD to advise the user that only a few hours of working time is left

including our exclusive Agrosun enhanced halides and sodiums

Sunrise / Sunset period

It works by forming an extremely thin elastic layer on the leaves that contains micro elements that the plant can absorb

Bluelab Conductivity Pen pots-and-containers a battery symbol appears onMinimum Order Quantity is 3 pieces. The ultimate handy solution for measuring conductivity! The Bluelab Conductivity Pen is the latest innovation for hand held conductivity meters. It provides a compact, quick and handy way to manage the success of your crops. The Bluelab Conductivity Pen simply tells you that your plants have the right amount of nutrient in your solution and lets you know if adjustments are needed. Display options available in C, F,