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Ordering Information HI758 Calcium Checker is supplied with (2) sample cuvettes with caps, calcium reagent starter kit for 25 tests, dropper,1 ml syringe with tip, 100 microliter pipette with tips, plastic pipette, battery, instructions and quick start guide.

Ordering Information HI772 Checker® is supplied with (2) sample cuvettes with caps, alkalinity reagent starter kit for 25 tests (1 bottle of alkalinity reagent), (1) 1 ml syringe and tip, ­­­ battery, instructions, and quick start guide.

Ordering Information HI713 Checker® is supplied with (2) sample cuvettes with caps, phosphate LR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.

Ordering Information HI736 Checker® is supplied with (2) sample cuvettes with caps, phosphorus ULR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.

Hanner - HI746 Low Range Iron ColorimeterAchieve accurate results for your water testing with our simple handled colorimeter. Forget about the hassle of matching to a color chart, the low range Iron colorimeter brings you more precise technology than your typical chemical test kit. By determining the concentration automatically, our handheld colorimeter provides a digital direct iron result.

Ordering Information HI98319 is supplied with protective cap, 35.00 ppt calibration solution sachet (4), CR2032 battery (1), plastic storage case, instrument quality certificate and instructional manual.

Hanner - Iodine Checker HC-HI718Gain confidence in your water testing results with our simple handheld colorimeter. Trust your readings now, our iodine colorimeter brings you more accurate technology than your average chemical test kit. Eliminate the struggle of determining colors visually, with our handheld colorimeter gives you digital iodine results directly.

Ordering Information The HI98108 pHep is supplied with protective cap, pH 4.01 buffer sachet, pH 7.01 buffer sachet (2), electrode cleaning sachet, CR2032 battery, instrument quality certificate and instructional manual.

Notes Nitrite and Copper present will interfere with the measurement.

Ordering Information HI782 Checker HC is supplied with sample cuvettes with caps (2), marine nitrate starter kit (reagents for 10 tests), 3 mL Pasteur pipette (1), 1.5V AAA battery (1), and instruction manual.

Ordering Information HI774 Checker® is supplied with (2) sample cuvettes with caps, phosphate ULR reagent for 10 tests, battery, instructions and quick start guide.

Method adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic Acid method. The reaction between phosphorus and the reagent causes a blue tint in the sample.

Method adaptation of the Zincon method.

Method colorimetric method

Method adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic Acid method. The reaction between phosphorus and the reagent causes a blue tint in the sample.

Method colorimetric method

Method adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic Acid method. The reaction between phosphate and the reagent causes a blue tint in the sample.

The HI780 Marine pH Checker HC is a simple, accurate and cost effective way to measure pH in saltwater. With a digital readout, there is no more struggling to determine colors visually. This pH tester's compact design stores easily with your other testing equipment. Keeping your aquarium pH stable a...

Marine pH Checker reagent refills for the easy to use, handheld Marine pH Checker HC Colorimeter HI780 as well as the Marine Master HI97105 Multiparameter Photometer.- Performs 100 Tests- Item #: HI 780-25