Bluelab Pens
Bluelab Pens – Precision Meters for Every Grower
The Bluelab OnePen™ combines advanced sensing technology with everyday simplicity – giving growers of all levels accurate pH, EC, and temperature readings in one compact device.
- Measure pH, EC, and temperature with a single pen
- Designed for hydroponic, soil, and water culture grows
- Waterproof, durable build for lab and field use
- Simple calibration with Bluelab calibration solutions
- Trusted by commercial and home growers worldwide
Explore the full range of Bluelab Pens below and find the right meter for your grow operation.
