The Bluelab ppm pen provides a compact, quick and handy way to manage the success of your crops to ensure they have the nutrients they need. Teamed with Bluelab’s pH Pen, you have a handy, convenient and accurate system for ensuring optimum plant growth and health.
- Fully waterproof, not just water-resistant
- Selectable measurement units so you can customise with your preferences
- Flat electrode for easier cleaning and maintenance
- Hold reading function to capture every measurement with ease
- Automatic temperature compensation for accurate readings anywhere
- Auto-off function to extend battery life
- 1 x AAA alkaline battery included, getting you started immediately