Why should I choose the Bluelab OnePen over other combination pH and conductivity pens?

Simply put, the Bluelab OnePen is the most advanced all-in-one pH & conductivity pen on the market. Getting to a stable reading is lightning fast, and it connects to the Bluelab Edenic app for historic tracking of your pH & conductivity readings.

What is the Edenic app? Why should I care?

Edenic is our mobile app that seamlessly captures your critical hydroponic data directly from your Bluelab device. Individual growers can now ditch the pen & paper when tracking a grow. Larger commercial operations can manage all grow data centrally.

I run a large commercial growing operation. What else should I know about Edenic?

For you, Edenic is a game changer. It provides a complete solution for managing your growing environment from on-site or afar. Consolidate data from multiple meters, set alarms for high & low readings, and record all historical data in one place.

Can I see pH and conductivity readings simultaneously?

Yes! The backlit screen shows pH & conductivity at the same time, unlike other pens that make you rotate different screens to see readings. The OnePen is packed with thoughtful touches like this, drawn from our own 30+ years of growing experience.

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.

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

Help Track order

Account Cart

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

Help Track order

Account Cart

OnePen - a 3-in-1 Temperature, EC/PPM and pH Meter, Lightning Fast Readings - Bluetooth Data Sharing & in-App Tracking - Replaceable Probe

Product ID: 710376454

Details

Brand
Bluelab
Item dimensions L x W x H
8 x 7 x 20
Item weight
0.32 Kilograms
Number of items
1
Unit count
1.0 count

⚡Fastest stable pH & EC reading

💧IP68 waterproof & floating design

📶Bluetooth data sync & app tracking

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

$531.01

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

Description

🌱 Grow smarter, not harder — precision meets innovation with Bluelab OnePen!

SEAMLESS SMART SYNC - Bluetooth connectivity pairs effortlessly with the Edenic app for real-time data logging and trend tracking.
ERGONOMIC PROFESSIONAL - Luxurious, durable design with a high-contrast screen and handy cap that doubles as a suspension system for hands-free testing.
LIGHTNING FAST PRECISION - Get stable pH and EC readings in seconds with ±0.01 accuracy—no more waiting, no more guesswork.
BUILT TO BRAVE THE ELEMENTS - IP68-rated waterproof and dustproof design that floats—perfect for any grow environment, indoors or out.
EFFORTLESS PROBE MAINTENANCE - Replaceable double-junction pH probe with titanium electrodes and built-in health sensor ensures longevity and reliability.

The Bluelab OnePen is a professional-grade 3-in-1 meter delivering ultra-fast, highly accurate pH, EC/PPM, and temperature readings. Featuring IP68 waterproofing, Bluetooth connectivity for seamless data management via the Edenic app, and a replaceable probe with health monitoring, it’s engineered for serious growers who demand precision and convenience. Ready to use out of the box with included calibration solutions and batteries, it’s the ultimate tool to optimize your growing environment with confidence.

Specifications

ASIN	B0DF71QDNJ
Best Sellers Rank	27,150 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 51 in Lab pH Meters
Brand	Bluelab
Country Of Origin	New Zealand
Customer Reviews	3.8 3.8 out of 5 stars (73)
Included Components	Bluelab OnePen, 18ml Solution Sachets, Sensor Cleaning Brush, 2x AAA Batteries
Item Dimensions	8 x 7 x 20 centimetres
Item Weight	0.32 Kilograms
Manufacturer	bluelab
Manufacturer Part Number	PENONE
Model Number	ONEPEN
Smart Home Compatibility	Not Smart Home Compatible
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

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week 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.

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

$531.01

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

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews