Milwaukee pH Tester Calibration 4.01 Solution – Lot of 3

Use with Milwaukee pH Meters and Controllers. These calibration fluids should be used whenever replacing electrodes, if you get an abnormal reading, or at least every month for general maintenance. This 3x 20ml, 4.01 pH solution is ideal when combined with 7.01 solution for 2-point calibration for most freshwater or low-pH aquarium systems.

Features

• Lot of 3, 4.01 pH, 20ml Calibration/Buffer Solutions
• Use with all Millwaukee pH meters
• Use with freshwater or low-pH aquarium systems
• Each Sachet used for single calibration applications
• Couple with 7.01 or 10.01 solutions for greater accuracy