Hanna Instruments HI711-11 / 711-11 | Total Chlorine Checker HC Calibration Check Set | Freshwater & Saltwater

Hanna Instruments HI711-11 / 711-11 | Total Chlorine Checker HC Calibration Check Set

Freshwater & Saltwater. Validate the accuracy of your HI711 Total Chlorine Checker® HC with the HI711-11 Calibration Check Set. This set includes sealed cuvettes containing a zero standard and a known chlorine standard, ensuring your Checker provides reliable chlorine measurements across a wide testing range.

• Designed for the HI711 Total Chlorine Checker® HC
• Includes two sealed cuvettes: zero and standard
• Standard value: 1.00 ± 0.05 ppm total chlorine @ 25 °C
• Reusable with long shelf life stability
• Supplied with Certificate of Analysis for traceability
• Lot number, reference values, and expiration date provided

More Information

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FAQ

• Freshwater or saltwater? Both. This calibration set works for chlorine testing in either environment.
• Do I need this for daily testing? Not required for routine checks — it’s used for calibration validation.
• How often should I validate? Every few months or if results seem inaccurate.