Bluelab Leap pH Probe - Accurate direct pH measurements in any substrate in seconds. Reliably measure the pH level across a wide range of media. Suitable for use with all Bluelab® products that use a BNC connection. The Bluelab® Leap pH Probe can be used by everybody from the home enthusiast through to more robust commercial applications. Team with Bluelab® Solutions. Product Features: Reinforced spear-tip for fast, direct measurement in substrates Effective in soil, coco coir blends, rockwool, potting mixes and solution Double-junction probe reduces reference contamination, extending longevity Fast sensor response for quick and accurate measurements Suitable for use with the Bluelab Combo Meter, Bluelab Combo Meter Plus and Bluelab Multimedia pH Meter BNC connector is covered to prevent corrosion