pH test strips, PEHANON 3.8 to 5.5 (Box of 200 test strips)

• Unify pH indicator and reference color chart on one strip

• Any sample color has the same effect on both, the reference colors and the reactive pad, allowing unadulterated pH reading even in colored solutions

• Gradation (pH): 3.8 - 4.0 - 4.2 - 4.4 - 4.6 - 4.9 - 5.2 - 5.5

• Length: 100 mm

• Width: 11 mm