This user-friendly and hardy handheld pen will take measurements in increments of 0.1 pH and is fully temperature compensated, so you can expect accurate readings every time.

• 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