


Bluelab® pH PenMeasures pH and temperature. Selectable units for C and F. Backlit LCD display. Double junction probe (not replaceable). Successful calibration indicator. Hold reading function and low battery warning. Fully waterproof with auto off function. Automatic temperature compensation. Along with Bluelab pH Probe KCI Solution, Bluelab pH 7 and Bluelab pH 4 Solution Sachets are now included. Range: 0. 014. 0 pH 050C 32122F. Resolution: 0. 1 pH 1C 1F. Accuracy
Quick Dispatch:
Your Bluelab® pH Pen orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Bluelab® pH Pen ships.
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Questions about Bluelab® pH Pen, sizing, or delivery? We're just an email away.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.7 ★★★★★
Based on 1739 reviews
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Product Reviews
★★★★★ 5
Bueno
Color: Dark Tortoise, Size: 55-18-140
Muy lindos y cómodos
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 4, 2025
★★★★★ 5
Tal cual
Color: Dark Tortoise, Size: 55-18-140, Color: Dark Tortoise, Size: 55-18-140
Son súper lindas, pero un poco pensadas
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Reviewed in the United States on August 15, 2025
★★★★★ 5
Fit nice
Color: Blue Crystal, Size: One Size
Love them
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Reviewed in the United States on March 17, 2026
★★★★★ 5
Love these!
Color: Black, Size: 51/17/145
Great look and affordable.
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Reviewed in the United States on January 6, 2026
★★★★★ 5
Lentes graduables
Color: Black, Size: 51/17/145
Súper finos y lindos
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Reviewed in the United States on December 8, 2025
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