Waterproof CyberScan CON 400 Portable Conductivity Meter with Conductivity electrode (EC-CONSEN91W), 1 electrode holder (15X000702) & carrying kit set (EC-CONWPKIT)
Waterproof CyberScan CON 410 Portable Conductivity/TDS Meter with Conductivity electrode (EC-CONSEN91W), 1 electrode holder (15X000702) & carrying kit set (EC-CONWPKIT)