Why should I choose the Bluelab pH pen over others?

The probe quality. Highly accurate, compensates for temp & is fast to a stable reading. It's a double junction probe, so it's durable. And it's full of thoughtful touches (the ring on top, the storage cap, the calibration indicator to name a few).

Other pens come with a hard carry case & calibration solutions in plastic bottles. Yours does not. Why is that?

Great question. We have made the deliberate choice to make our packaging as sustainable as possible. To that end, our packaging is all fully recyclable, with no hard plastics or styrofoam inserts.

How does Bluelab make calibration super easy?

Calibrating is an easy & fast process! Each pen includes calibration solutions & clear instructions. A check mark appears when the pen is calibrated. When the pen loses calibration, the check mark disappears, informing you it's time to recalibrate.

I sometimes see a white crust built up on the end of the pen. What is this?

This is very common in pH meters & is nothing to worry about. The storage solution used to hydrate your pen (and extend its longevity) is potassium salt, which sometimes dries as a white crust on your probe. Simply rinse this away under water.

Can I use the pH Pen to measure the pH of tap water, distilled water, or reverse-osmosis water?

No. For distilled & RO water there aren't enough dissolved ions (salts) for a stable pH reading. For tap water, w/o sufficient dissolved minerals, the answer is also no. Adding a few drops of KCL storage solution may work to enable a stable reading.

Bluelab Penph Pen Ph Measuring Instrument Waterproof Digital Paper Meter

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

💧 Stay ahead in your garden game with precision that floats your boat!

SMART EFFICIENT - Auto temperature compensation and calibration reminders keep your readings flawless.
PRECISION P H MASTERY - Double junction probe ensures lab-grade accuracy beyond test strips.
BUILT FOR THE ELEMENTS - Fully waterproof design with floatation—never worry about accidental drops again.
LONG LASTING PERFORMANCE - Durable build with battery and auto-off features for extended field use.
COMPLETE HYDROPONIC CONTROL - Pair with Blue Lab’s soil acidometer and conductivity meter for ultimate nutrient management.

The Bluelab PENPH pH Pen is a waterproof, digital pH meter designed for hydroponics, gardening, and water quality inspection. Featuring a double junction probe for precise measurements, automatic temperature compensation, and smart reminders, it offers reliable, professional-grade pH monitoring. Lightweight and durable, it floats if dropped and includes AAA batteries, making it an essential tool for millennial growers seeking effortless nutrient management.

Reviews

N**N

Good

3.02.2023

な**ん

その他の商品も販売してほしい

26.11.2022

J**Z

Me gusto, es fácil de calibrar. Te avisa cuando se necesita calibrar, lo único difícil es conseguir el humectador de sonda. Pero de ahí en más es un gran aparato.🤘🏼

19.09.2022

A**T

These do a good job of what is required of them.

14.02.2026

D**E

Uno dei migliori misuratori di ph per l'acqua, il prezzo è alto, ma la qualità è eccellente

4.01.2023

J**O

Muy buen pH-metro, muy fiable y fácil de utilizar

25.01.2026

A**R

I dont know how old the one I was given 2nd hand was, I used it for 4 years. when I lost trust in it due to reasons, I purchased this one myself, as in, willing to spend money on it over the cheaper ones... comes with calibration fluid sachets. Great product.

25.11.2024

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

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ASIN	B005POOJHG
Amazon Bestseller	#352,777 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #841 in Lab pH Meters
Brand Name	Bluelab
Customer Reviews	4.4 4.4 out of 5 stars (4,568)
Global Trade Identification Number	09421024920234
Item Dimensions	20.3 x 5.5 x 2.5 cm
Item Weight	122 g
Model	pH Pen
Part Number	PENPH
UPC	706842510010 715706332132

Bluelab PENPH Pen, pH Measuring Instrument (Waterproof), Digital Paper Meter, Hydroponics, Water Quality Inspection, Home Vegetable Gardening

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Description

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Common Questions