Bluelab One-Pen Replacement Probe

A replacement pH, Conductivity (EC), and Temperature Probe for Bluelab OnePen
Extends the life of your Bluelab OnePen, minimising the need for full device replacements
Quick and simple to replace, reducing downtime and keeping your OnePen functioning optimally
Built to last with a double-junction pH probe and titanium EC electrodes
Delivers precise pH, Conductivity (EC), and Temperature readings with easy calibration
Cost-effective, sustainable maintenance
IP68-certified waterproof and dustproof
Superior durability and easy maintenance
Extend the life of your Bluelab OnePen™ with our easy-to-replace probe. This high-quality replacement ensures accurate pH, Conductivity (EC), and Temperature readings, keeping your plants healthy and thriving.
If your Bluelab OnePen™ is starting to show signs of wear and tear, or if you want to ensure the most accurate readings possible, replacing the probe is a great way to keep your device performing at its best. Bluelab OnePen™ Replacement Probe is made with high-quality materials and is designed to last in tough growing environments. It is also easy to install, so you can get back to monitoring your plants in no time.