Bluelab pH Pen | Waterproof Digital pH Tester for Hydroponics Co2 Control Application Rate: Exceptionally low dosage

Application Rate: Exceptionally low dosage of just 0

Whisper-Quiet Operation: Featuring a lightweight acoustic foam lining and a built-in silencer

Always shake the bottle vigorously before administering

this ultra-pure dry mineral salt formula provides the elevated Phosphorus (P) and Potassium (K) levels required to drive flower density

Route the cord into your grow space and hang the sensor head directly at plant canopy level

Bluelab pH Pen | Waterproof Digital pH Tester for Hydroponics Co2 Control Application Rate: Exceptionally low dosageBluelab pH Pen: The Ultimate Handheld Digital pH & Temperature Tester Take complete control of your crop health with the Bluelab pH Pen. Trusted by commercial growers and hobbyists alike, this lab quality instruments provides fast, accurate, and temperature compensated readings of your liquid nutrient solutions. Whether you manage a sophisticated hydroponics setup, a backyard greenhouse, or a home aquarium, maintaining the perfect pH level is critical