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SINGLE Hanna 35 ppt Salinity Calibration Solution Sachet HI70024P is a premium quality 35.00 ppt salinity calibration solution that is NI...

The Hanna Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate...

The HANNA HI 711 Checker® HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not ve...

Easier to use and more accurate than chemical test kits Adaptation of EPA Diazotization method Accuracy ±4% of reading ±10 ppb 1 p...

Easier to use and more accurate than chemical test kits Adaptation of Standard Method Ascorbic Acid Accuracy ±5% of reading ±5% ppb 1 ppb resoluti...

Hanna Instrument Iron Photometer

Reagent kit for 25 Iron Tests Range: 0.00 to 5.00 mg/L  

Magnesium is the third most abundant ion in seawater, surpassed only by sodium and chloride. Its abundance is critical in the formation of weak ion...

Reagent refill for the HI-783 (UPDATE VERSION with powder and liquid reagent.) Magnesium is the third most abundant ion in seawater, surpassed only...

The HI774 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphate in marine systems including co...

25x refill for Phosphate Ultra Low Range Reagents - HI774

REAGENTS: HI 764 Reagent kit for 25 Nitrite tests Range: 0 to 200 ppb

Hanna Instrument Phosphorus Ultra Low Range Reagents - HI736 (25 units)

Hanna Instruments Checker Marine Alkalinity Colorimeter Hanna HI755 Marine Alkalinity Checker Specifications: Range: 0 to 250ppm (mg/L) Resolution...

Refill Kit for Hanna Instruments Checker Marine Alkalinity Colorimeter

Refill Kit for Hanna Instruments Calcium Checker

Hanna Instruments Copper REFILL KIT - HI702-25 - pack of 25

The HI731315 are spare glass cuvettes and plastic caps used with the HI7XX Hanna Checkers. The HI731315 includes 2 cuvettes and 2 caps.

Hanna Instruments Low Range Marine NITRATE Checker HC - HI781   The Hanna Marine Low Range Nitrate Checker® bridges the gap b...

Hanna Instruments Checker Marine Calcium Colorimeter Easier to use and more accurate than chemical test kits Colorimetric method Accuracy ±6% of r...

The HI97115 Marine Multiparameter Photometer is a compact powerhouse for aquariums and marine biology, capable of precisely measuring pH, Alkalinit...

Hanna Instruments Low Range Marine NITRATE Checker HC REFILL HI-781-25   1x PC x100 mL HI781A-0 25x PCS x 0.16g HI781B-0 ...

Hanna Instruments Checker Phosphate Colorimeter Easier to use and more accurate than chemical test kits Adaptation of Standard Method 4500-P E Accu...

Refill Kit for Hanna Instruments PO4 Checker - pack of 25