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“This is one reliable meter!” The Bluelab pH Pen will quickly and accurately measure your hydroponic solution’s acid/ alkaline balance. Use to maximize plant nutrition and ensure optimum plant health, growth and yields.
• Successful calibration indicator
• Measures pH and temperature
• Completely waterproof
• Backlit LCD display
• AAA alkaline battery included
• Warranty: 1-year repair or replacement
Product Manual (PDF)
DIRECTIONS FOR USE:
Step1: Press power button and place probe in solution. Wait for reading to stabilize.
Step 2: To hold reading press power button again.
To ensure accurate readings the double junction probe needs to be rinsed in water after each use and cleaned prior to calibration.