Soil Pen

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Specially developed for hobby and small scale growers, the Bluelab Soil pH Pen will help manage the success of your crops. Provides an accurate pH and temperature reading of soils and growing media, so you’ll know that your plants are getting the nutrients they need.

• Successful calibration indicator
• Measures soils and media
• Completely waterproof
• Backlit LCD display
• AAA alkaline battery included
• Warranty: 1-year repair or replacement

Product Manual (PDF)


Step 1: With the protective storage cap/ dibber on place the probe into the test area to make a hole and remove.

Step 2: Press the power button ON and place the probe back into the hole with the storage cap/ dibber off. Wait for reading to stabilize.

Step 3: To hold reading press power button again.

Grower’s Tip:
To prepare the meter for storage, place enough KCl Storage Solution, to cover the probe tip, into the cap/ dibber. Never use RO, distilled or deionized water.