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.

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ブルーラボ (Bluelab) PENPH pHペン pH測定器 (防水) デジタルペーハー計水耕栽培水質検査家庭菜園園芸

Product ID: 730760946

Details

Brand
Bluelab
Global Trade Identification Number
Item Weight
0.27 Pounds
Item dimensions L x W x H
20.3 x 5.5 x
UPC
706842510010

⚡Auto temperature compensation

💧Waterproof & floats if dropped

⏱️Auto-off & calibration reminders

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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.

Specifications

ASIN	B005POOJHG
Amazon Bestseller	#402,677 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #949 in Lab pH Meters
Brand Name	Bluelab
Customer Reviews	4.4 4.4 out of 5 stars (4,577)
Global Trade Identification Number	09421024920234
Item Dimensions	20.3 x 5.5 x 2.5 cm
Item Weight	0.27 Pounds
Model	pH Pen
Part Number	PENPH
UPC	706842510010 715706332132

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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.

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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.

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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.

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$225.09

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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ブルーラボ (Bluelab) PENPH pHペン pH測定器 (防水) デジタルペーハー計 水耕栽培 水質検査 家庭菜園 園芸

Details

Details

Description

Specifications

Common Questions

ブルーラボ (Bluelab) PENPH pHペン pH測定器 (防水) デジタルペーハー計水耕栽培水質検査家庭菜園園芸