Bluelab pH Pen

Name: GroWorks Bluelab pH Pen - Bluelab pH Pen
Brand: GroWorks
SKU: 33735391412268
Price: 126.92 USD
Availability: InStock
Rating: 4 (4 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$126.92$158.67

20% off

Quantity

Color

Black

Quantity

Description

All the quality you would expect from a Bluelab product in a handy pen form. The Bluelab pH Pen is an ultra-reliable and fully waterproof handheld pH meter. It can quickly and accurately measure the pH and temperature of your nutrient solut...

Reviews

4.0

4 ratings

The two New Bluetab pen’s that I tried both wouldn’t even calibrate properly, so I definitely wouldn’t recommend them anymore. My old one lasted 4 years.

Alex · April 28, 2026