IntelliCAL™ Sodium Ion Selective Electrode, 1 meter cable -- ISENA38101
from Hach Company

Fast response and exlusive built-in temperatrure sensor! IntelliCAL(TM) Standard Probes are accurate, pre-calibrated, and reliable. **The HQd-series meter firmware must be updated to firmware revision 2.0.0.689. Please order the complete HQd-series firmware upgrade kit (Cat. No. 5854000) to perform... [See More]

  • Membrane: Liquid - Ion Exchange
  • ISE Concentration Range: 17.79 to 1.78E8
  • Electrode Type: Sodium
  • Response Time: 120
Chlorine Sensors -- Model 499ACL
from Rosemount Analytical

FAMILY OF AMPEROMETRIC SENSORS for measuring free chlorine, total chlorine, and monochloramine. 499ACL-01 MEASURES FREE CHLORINE without sample pre-treatment. No messy and expensive reagents needed. Automatic pH correction to at least pH 9.5. 499ACL-02 MEASURES TOTAL CHLORINE when used with the... [See More]

  • Membrane: Liquid - Ion Exchange
  • pH Range: 6 to 9.5
  • Electrode Type: Chlorine
  • Response Time: 22