The Bluelab Soil pH Pen gives you an accurate picture of your grow media pH, allowing you to adjust as necessary and maximise nutrient uptake, for healthy, fast growing, high-yielding plants. Whether you grow in water or substrate, pH is a key factor in your plants’ ability to access the nutrients you feed them. In order to get the best out of your nutrients and your crop it’s essential that you know what your pH levels are.

Handheld, featuring straightforward controls, and with a backlit LCD screen for clear readouts, the Bluelab Soil pH Pen makes pH monitoring incredibly simple. While it’s probing the Soil pH Pen also gives you a verdict on temperature, allowing you to take cues on necessary adjustments in that department. Durable, and trusted the world over by all kinds of growers, Bluelab instruments can serve you well for years if properly looked after.

• Accurate pH and temperature monitoring for your grow media
• Know your pH and adjust if required to maximise nutrient uptake
• Helps you get more from your nutrients and your plants
• Handheld with straightforward controls
• Durable, tried and trusted design
• Backlit LCD screen for clear readouts 
• Integrated storage cap/dibber 
• Selectable units for temperature
• Fully waterproof
• Auto off function
• 1 x AAA alkaline battery included

Order and pay online before 1pm for free, same-day, in-store collection (Mon to Sat).

Order and pay online after 1pm, or on a Sunday, or on a Bank Holiday for free, next-day, in-store collection.

* Please await your ‘Order Ready’ email before setting out to collect your order. *

On orders over £99 we offer free standard U.K. delivery* within 1-3 days of your order being placed.

Your goods will be transported securely, discreetly, and with tracking to ensure you have the best possible idea of when they’ll be delivered.

*exclusions and surcharges may apply, please see full Delivery Information for details.