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.
