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.

There's a lot here about growing plants. Can I use the Bluelab pH pen for other applications?

Absolutely! Our pen is a critical tool for anyone who is seeking precision and consistency in the pH of their liquid solution. Our pen is used by leading brewers, vintners, wastewater technicians, and scientists in the field, just to name a few.

Bluelab Ph Pen Meter And Probe Care Kit Ph Optimal

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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NZ$367

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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Description

🌿 Stay ahead of the growth curve with precision pH control!

SMART SUSTAINABLE - Auto temperature compensation and calibration reminders keep your readings consistent and your device performing at peak.
ALL CONDITIONS READY - Waterproof design with backlit LCD and floating capability means reliable use anytime, anywhere—even in low light or wet environments.
PRECISION P H MASTERY - Lab-quality glass probe with double junction electrode ensures ultra-accurate readings for optimal nutrient balance.
BOOST YOUR GROWTH GAME - Perfect for hydroponics, aquariums, and more, this kit empowers you to optimize plant health and maximize yields effortlessly.
COMPLETE CARE KIT INCLUDED - Everything you need—calibration sachets, cleaning brush, and storage solutions—so your pH pen stays accurate and long-lasting.

The Bluelab pH Pen Meter and Probe Care Kit is a professional-grade, waterproof digital pH tester with auto temperature compensation and a durable double junction glass probe. It includes a comprehensive maintenance kit with calibration solutions and cleaning tools, ensuring accurate, reliable pH measurements for hydroponics, aquariums, and other applications—helping you optimize plant health and maximize yields with ease.

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.

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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.

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NZ$367

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered 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 New Zealand.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Best Sellers Rank	#15,826 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #19 in Lab pH Meters
Customer Reviews	4.4 out of 5 stars 245 Reviews

Bluelab pH Pen Meter and Probe Care Kit pH for Optimal Plant Health

Description

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Common Questions