HI-77200P Combination pH/TDS Buffer Kit 1500 ppm & 7.01 pH
The HI-77200P is a calibration kit containing 10 x sachets each of pH buffer 7.01 and TDS solution 1500ppm.
*TDS conversion factor 4-4-2: 0.65 ppm = 1µS/cm (approximately).
Jawa Barat - Bekasi