Sensorex B804 pH 4.01 Buffer Red, 1 Gallon

Features:

• Sensorex supplies pH buffers as pre-mixed, ready-to-use, color-coded liquids
• Buffers are guaranteed accurate to within +/- 0.01 pH units at 25 deg C.
• Buffer labels include pH vs. temperature information for precise calibration.

This is the same solution that is shipped with all pH electrodes and ensures electrodes are ready for immediate use. Storage solution is recommended for long-term electrode storage since it is not color-coded and will not impart any color to the electrode's reference junction.