






Bluelab PH Pen - Temperature Compensated Digital PH Meter
The Bluelab pH Pen is a compact, easy-to-use digital pH meter designed for growers who demand accuracy and durability. Whether you're managing a hydroponic system, soil-based grow, or nutrient solution, precise pH control is essential for healthy plant development and nutrient uptake. This pocket-sized tool offers professional-grade performance in a waterproof, portable design.
With built-in automatic temperature compensation, the Bluelab pH Pen ensures reliable readings in varying environments. It features a clear digital display, hold function, and backlighting, making it ideal for quick checks on the go, even in low light conditions.
Features
- Measures pH and temperature simultaneously
- Automatic temperature compensation for consistent accuracy
- Easy-to-read LCD display with backlight and hold function
- Fully waterproof design
- Replaceable double-junction probe for extended lifespan
- Auto-off function to conserve battery life
- Calibrate with simple two-point calibration
Trusted by Professionals Worldwide
Bluelab is a global leader in horticultural measurement tools, known for their rugged build quality and reliable performance. The pH Pen is ideal for use in all growing environments and is built to withstand the demands of daily use in commercial or home setups.
Why pH Matters
Maintaining the correct pH level in your nutrient solution or grow medium ensures your plants can access the nutrients they need. A pH that's too high or too low can lock out essential elements, leading to stunted growth or nutrient deficiencies. The Bluelab pH Pen gives you the confidence to fine-tune your feeding programme and grow with precision.
What's Included
- Bluelab pH Pen
- AAA battery (installed)
- User manual
- Bluelab care and calibration guide
Take control of your grow with the Bluelab pH Pen – a dependable, accurate tool designed for growers who value precision and quality.
Original: $95.27
-65%$95.27
$33.34Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Bluelab pH Pen is a compact, easy-to-use digital pH meter designed for growers who demand accuracy and durability. Whether you're managing a hydroponic system, soil-based grow, or nutrient solution, precise pH control is essential for healthy plant development and nutrient uptake. This pocket-sized tool offers professional-grade performance in a waterproof, portable design.
With built-in automatic temperature compensation, the Bluelab pH Pen ensures reliable readings in varying environments. It features a clear digital display, hold function, and backlighting, making it ideal for quick checks on the go, even in low light conditions.
Features
- Measures pH and temperature simultaneously
- Automatic temperature compensation for consistent accuracy
- Easy-to-read LCD display with backlight and hold function
- Fully waterproof design
- Replaceable double-junction probe for extended lifespan
- Auto-off function to conserve battery life
- Calibrate with simple two-point calibration
Trusted by Professionals Worldwide
Bluelab is a global leader in horticultural measurement tools, known for their rugged build quality and reliable performance. The pH Pen is ideal for use in all growing environments and is built to withstand the demands of daily use in commercial or home setups.
Why pH Matters
Maintaining the correct pH level in your nutrient solution or grow medium ensures your plants can access the nutrients they need. A pH that's too high or too low can lock out essential elements, leading to stunted growth or nutrient deficiencies. The Bluelab pH Pen gives you the confidence to fine-tune your feeding programme and grow with precision.
What's Included
- Bluelab pH Pen
- AAA battery (installed)
- User manual
- Bluelab care and calibration guide
Take control of your grow with the Bluelab pH Pen – a dependable, accurate tool designed for growers who value precision and quality.


















