Bluelab pH Pen

• Fully waterproof not just water resistant
• Simple two-point calibration process for accuracy
• One-year peace-of-mind warranty
• Automatic temperature compensation for accurate readings everywhere
• Auto-off function to extend battery life
• 1 AAA battery included simply power on and go

Healthy growing plants, just like humans, need a balanced diet of appropriate nutrients (food). However, plants can only access these nutrients when the nutrient solution is within a certain pH range. To help your plants thrive, get the fundamentals right by measuring pH and temperature to ensure that these are always in the optimal range.