Get the top selling and most reliable PH Pen combined with the calibration and storage solutions you need to maintain it.

Bluelab PH Pen Kit contains:

• Bluelab PH Pen
• Bluelab 4.0 Calibration Solution - 500ml
• Bluelab 7.0 Calibration Solution - 500ml
• Bluelab KCl Storage Solution - 250ml

Bluelab PH Pen Highlights

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 (using the 2 calibration solutions included in this kit)
• 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