Accessories & Standards
Keep your Hanna Checker running in top shape with genuine replacement reagents and standards. Hanna Instruments standards are made to test your checkers with known values that will allow you to offset your reading or compensate for a range of error, and in some cases you can even calibrate your checker to the correct value for more accurate readings.

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Hanna InstrumentsHI783-11 Marine Magnesium Calibration Check Set for HI783 - Hanna Instruments$20.00
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Hanna InstrumentsHI784-11 Marine Ammonia Calibration Check Set for HI784 - Hanna Instruments$20.00
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Hanna InstrumentsHI758-11 Marine Calcium Calibration Check Set for HI758 Checker - Hanna Instruments$18.00
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Hanna InstrumentsHI713-11 Phosphate Calibration Check Set for HI713 Checker - Hanna Instruments$14.00
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Hanna InstrumentsHI736-11 Phosphorus Calibration Check Set for HI736 Checker - Hanna Instruments$13.00
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Hanna InstrumentsHI755-11 Marine Alkalinity Calibration Check Set for HI755 Checker - Hanna Instruments$13.00
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Hanna InstrumentsHI764-11 Nitrite Calibration Check Set for HI764 Checker - Hanna Instruments$13.00
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Hanna InstrumentsHI774-11 ULR Phosphate Standards for HI774 Hanna Checker - Hanna Instruments$13.00