PH Sensor + Temperature Sensor Kit (Black PCB)

PH value of the buffer solution preparation kit PH buffering agents 4/7/9 * 1 3 / set 

1. PH 4.003 25 degrees potassium hydrogen phthalate solution may be formulated 250ML

2. PH 6.864 25 degree hybrid may be formulated in a phosphate solution 250ML

3. PH 9.182 25 degrees sodium tetraborate solution may be formulated 250ML

These values are the actual subject.

 PH = 4 [test] FIG.

PH = 6.86 [Test] FIG.

PH = 9.18 [Test] FIG.

[The following picture is a sensor with temperature compensation PH value acquisition new version show pictures]