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.

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

Help Track order

Account Cart

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

Help Track order

Account Cart

Bluelab pH Pen - ± 0.1 pH Accurate, Durable Double Junction Probe, Waterproof & Floats, Auto Temperature Compensation, Easy Calibration - Made in NZ

Product ID: 4206087

Details

Brand
Bluelab
Item Weight
4.32 ounces
Item dimensions L x W x H
8 x 2.16 x
Material
Glass
Number of Items
1

💧Waterproof & floats

⚖️±0.1 pH precision

🌡️Auto temperature compensation

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

₪501

Duties & taxes included

In stock

Sold byAmazon IsraelDelivered 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 Israel.

Secure transaction

Description

🌿 Master your medium with precision and confidence!

DOUBLE JUNCTION DURABILITY - Advanced probe minimizes contamination for longer life and consistent accuracy.
PRECISION THAT POWERS GROWTH - Achieve ±0.1 pH accuracy for optimal nutrient uptake every time.
BUILT TO BRAVE ANY ENVIRONMENT - Waterproof design that floats and withstands drops—perfect for on-the-go pros.
DESIGNED FOR THE MODERN GROWER - Auto-off, low battery alert, and hands-free lanyard keep you efficient and focused.
SMART CALIBRATION ZERO HASSLE - Two-point easy calibration with 30-day reminder keeps your readings razor-sharp.

The Bluelab pH Pen is a professional-grade, waterproof pH meter featuring ±0.1 accuracy, a durable double-junction probe, and automatic temperature compensation. Designed in New Zealand for hydroponics, aquariums, pools, and soil, it offers easy two-point calibration with a 30-day reminder, floats in liquids, and includes user-friendly features like auto-off and low battery alerts. Ideal for millennial growers and professionals seeking reliable, on-the-go pH monitoring.

Specifications

ASIN	B005POOJHG
Best Sellers Rank	#11,102 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15 in Lab pH Meters #52 in Soil Meters
Brand Name	Bluelab
Customer Reviews	4.4 4.4 out of 5 stars (4,763)
Global Trade Identification Number	09421024920234
Item Dimensions	8 x 2.16 x 0.98 inches
Item Weight	4.32 ounces
Manufacturer	Bluelab Corporation Limited - Import (NZ)
Material Type	Glass
Model	pH Pen
Part Number	PENPH
UPC	706842510010 715706332132
Unit Count	1.0 Count

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

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.