Bluelab Soil pH Pen

A hardy handheld solution for measuring soil pH and temperature on the go  Effective in most growing media and in water/solution Fully waterproof - not just water resistant Industry-leading one-year warranty for peace of mind Hold reading function to capture measurements with ease Simple two-point calibration for increased accuracy Auto-off function to extend battery life Automatic temperature compensation for accurate readings everywhere 1 x AAA alkaline battery included; simply power on and go