Blue Lab pH Pen trolmaster colorful plastic of Safer’s® Sticky

colorful plastic of Safer’s® Sticky Strips™

you can enhance growth while  promoting flowering

weight and quality of flowers and buds by flipping the switch on your plant's regulatory systems and forcing them to produce larger

Remember that due to its high concentration

Blue Lab pH Pen trolmaster colorful plastic of Safer’s® StickyThe Bluelab pH Pen provides a compact, quick and handy way to manage the success of your crops to ensure maximum uptake of nutrients. Teamed with our Bluelab EC Pen or Bluelab ppm Pen, you have a handy, convenient and accurate system for ensuring optimum plant growth and health. Features: Measures pH and temperature, Selectable units for C & F, Backlit LCD display, Double junction probe (not replaceable), Successful calibration indicator, Hold