BLUELAB PH PEN 1 YR WARRANTY
The Bluelab pH Pen is the ultimate handy, compact, and quick solution to ensure maximum uptake of nutrients by your crops.
-Fully waterproof - not just water resistant
-Simple two-point calibration process for accuracy
-One-year peace-of-mind warranty
-Automatic temperature compensation for accurate readings everywhere
-Auto-off function to extend battery life
-1 AAA battery included - simply power on and go