Hanna Instruments HI736-11 / 736-11 | Phosphorus Ultra Low Range Checker HC Calibration Check Set | Aquarium Testing

Hanna Instruments HI736-11 / 736-11 | Phosphorus Ultra Low Range Checker HC Calibration Check Set

Saltwater. Validate the accuracy of your HI736 Phosphorus Ultra Low Range Checker® HC with this Calibration Check Set. The set includes sealed cuvettes containing a zero standard and a known phosphorus standard so you can confirm your Checker is reading correctly for ultra low phosphorus in reef aquariums.

• Designed for the HI736 Phosphorus ULR Checker® HC
• Includes two sealed cuvettes: zero and standard
• Standard value: 100 ± 10 ppb phosphorus at 25 °C
• Reusable with long shelf life stability
• Supplied with Certificate of Analysis for traceability

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FAQ

• Freshwater or saltwater? Saltwater. The HI736 line targets ultra low phosphorus for reef systems.
• How often should I validate? Every few months or any time results appear off.
• Can I reuse the cuvettes? Yes. Store sealed and handle carefully to maintain accuracy.