Bluelab ONE Pen Replacement Probe | pH + EC + Temperature Sensor Bloom Nutrient or scorching hot

or scorching hot

An eco friendly design

Take the hassle out of plant care with the AutoPot® Hydropak 8-Pot Starter Kit

Made of food-grade plastic

High-Efficiency Performance: 744 Samsung LM301 diodes paired with a Sosen driver deliver 2

Bluelab ONE Pen Replacement Probe | pH + EC + Temperature Sensor Bloom Nutrient or scorching hotKeep your readings sharp and your Bluelab ONE Pen performing like new with the Bluelab ONE Pen Replacement Probe. Designed as a direct replacement for the original probe, this unit restores accurate pH, conductivity (EC), and temperature measurementhelping you stay on top of nutrient uptake and maintain a stable feed program. Instead of replacing the entire device, swapping the probe is a smarter, more sustainable way to extend the life of your ONE