Compact pH and temperature Bluelab pH Pen

Compact pH and temperature Bluelab pH Pen A hardy, compact pH and temperature pen Perfect for quick and easy pH and temperature readings direct from your solution 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 A hardy, compact pH and temperature pen Perfect for quick and easy pH and temperature readings direct from your solution 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