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.

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Bluelab OnePen, 3-in-1 Temperature, EC/PPM and pH Meter

Product ID: 710376454

Details

Brand
Bluelab
Item dimensions L x W x H
8 x 7 x 20
Material
Premium and
Measurement accuracy
±0.01
Style
Modern

⚡Lightning-fast readings

💧IP68 waterproof & floats

📊Bluetooth data sync & tracking

2755 Lei

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Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌱 Grow smarter, not harder — the OnePen keeps you ahead of the curve!

PRO GRADE RELIABILITY - Backed by 30 years of Bluelab expertise, trusted by professional growers worldwide.
ERGONOMIC LUXURY IN HAND - Premium materials and high-contrast screen make testing comfortable and easy, even in low light.
SEAMLESS SMART MONITORING - Bluetooth sync with Edenic app lets you track, analyze, and share your grow data effortlessly.
BUILT TO BRAVE THE ELEMENTS - IP68-rated waterproof design with a floating probe means no more worries about spills or drops.
PRECISION AT YOUR FINGERTIPS - Accurate to ±0.01 for pH and EC/PPM ensures your plants get exactly what they need.

The Bluelab OnePen is a professional-grade 3-in-1 meter delivering ultra-fast, highly accurate pH, EC/PPM, and temperature readings. Featuring IP68 waterproof durability, a replaceable titanium electrode probe, and Bluetooth connectivity with the Edenic app, it streamlines data tracking and plant care. Designed for growers who demand precision and convenience, OnePen combines 30 years of expert engineering into a sleek, ergonomic tool that floats and withstands tough environments.

Specifications

ASIN	B0DF71QDNJ
Best Sellers Rank	174,657 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 226 in Lab pH Meters
Brand	Bluelab
Country Of Origin	New Zealand
Customer Reviews	4.0 4.0 out of 5 stars (88)
Included Components	Bluelab OnePen, 18ml Solution Sachets, Sensor Cleaning Brush, 2x AAA Batteries
Item Dimensions	8 x 7 x 20 centimetres
Item Highlight	Lightning Fast Readings - Bluetooth Data Sharing & in-App Tracking - Replaceable Probe
Manufacturer	Bluelab Corporation Limited - Import (NZ)
Manufacturer Part Number	PENONE
Material	Premium Plastics and Metals (with Titanium)
Measurement Accuracy	±0.01
Model Number	PENONE
Number of Items	1
Output Type	digital
Specific Uses For Product	horticulture, hydroponics, traditional soil, horticultural setups
Style Name	Modern
Unit Count	1.0 count

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2755 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered 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 Romania.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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