Calibration solution set pH 4.01 / 7.00 + 1.413 / 12.88 mS

This set contains two bottles of pH calibration solution (pH 4.01 / pH 7.00) and two bottles of EC calibration solution (1.413 mS / 12.88 mS), each containing 250ml.

• pH solutions: pH 4.01 and pH 7.00, 250ml each
• EC solutions: 1.413 mS/cm and 12.88 mS/cm, 250ml each
• Precise pH calibration: The solutions accuracy of pH 0.015 allows highly accurate calibration
• Easy recognition: Based on the colors, you can recognize the correct pH solution at a glance (pH 4: red, pH 7: green)
• The EC calibration solutions are suitable for any type of conductivity meter
• Use immediately: Instead of dissolving powder in distilled water first, you can use the solutions immediately
• Long shelf life, batch certificates available on the Internet