Blue Lab pH Pen trolmaster weight and quality of flowers

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

See the guaranteed analysis for more information about our quality ingredients

agitate well until dissolved

Bluelab Chamois (conductivity probe cleaning instrument)

colorful plastic of Safer’s® Sticky Strips™

Blue Lab pH Pen trolmaster weight and quality of flowersThe 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