https://www.hach.com.tw/mod/product/index.php?REQUEST_ID=fcdca91c8a7bc8da7350a9602956ca02231cb42822175f1aab3053687c3e07db
手持式pH計和導電度計 HQ4200 Portable Multi-Meter with Rugged Field Gel pH and Conductivity Electrode -...
Rugged and portable, this kit includes the HQ4200 meter with two light-duty probes for precise pH and Conductivity measurements, featuring seamless USB data...
ph and conductivitymulti meter