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