HI783

Marine Magnesium Checker® HC

$67.99

The first Magnesium test of its kind for saltwater aquariums, our Marine Magnesium Checker® HC (HI783) is just what every reef tank owner needs. Struggling with test kits is now a thing of the past. Stop guessing or interpreting a color change by eye. Get a fast, accurate digital read-out every time.

Perfect for testing and measuring Magnesium levels in saltwater aquariums, reef tanks, and other marine and aquaculture applications.

Easy-to-read, instant digital results
Small, convenient portable size
User-friendly, simple directions and steps

Resources

Features

What's included

Specifications

Warranty

Video

Quick reference guide

Testing tips

Manuals

Saltwater compatible
Dedicated to a single parameter
Range: 1000 to 1800 ppm Magnesium
Determines the concentration of Magnesium colorimetrically using the Beer-Lambert Principle
One-button operation
A great alternative to chemical test kits
Color-coded syringes for hassle-free testing
Auto shut-off conserves battery energy
Large LCD screen with digital read-out

Marine Magnesium Checker (HI783) supplied with protective case

Reagent set for 25 Magnesium tests (HI783-25)

Glass cuvette and cap (2 pcs.) (HI731315)

5 mL syringe with tip and black printing (1 pc.)

5 mL syringe with tip and blue printing (1 pc.)

1.5V AAA Alkaline battery (1 pc.)

Instruction manual

Quick reference guide

Specification	Detail
SKU	HI783
Range	1000 to 1800 ppm Magnesium
Resolution	5 ppm
Accuracy @ 25°C (77°F)	±5% of reading
Light Source	Light Emitting Diode @ 610 nm
Light Detector	Silicon photocell
Method	Adaptation of the colorimetric EDTA method using calmagite indicator. The reaction between magnesium and the reagents causes a blue to violet tint in the sample.
Battery Type	1.5V AAA Alkaline
Auto shut-off	After 10 minutes of non-use
Environment	0 to 50 °C (32 to 122 °F) max. 95% RH non-condensing. Prepared sample cuvette (sample plus reagents) must be 22 to 28 °C (72 to 82 °F).*
Dimensions	86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5in.)
Weight	64 g (2.3 oz)
Reagent Set	HI783-25 (25 tests)
Calibration Check	HI783-11
Warranty	1 year

1 Year Warranty

Our Marine Magnesium Checker^® HC (HI783) is warranted for a period of one (1) year against defects in workmanship and materials when used for its intended purpose and maintained according to instructions. This warranty is limited to repair or replacement free of charge. Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered.

For more information, please visit our Terms and Conditions or contact our Tech team directly by phone at 800-426-6287 or by email at tech@hannainst.com.

Measure liquids accurately using a syringe by drawing up the plunger until the bottom seal of the plunger is at the desired volume mark. Do not raise the liquid to the mark as this will give a false high volume. An air gap between the plunger and liquid is normal.
Clean, dry cuvettes should always be used to prevent dilution. Whenever the cuvette is placed inside the checker, it must be completely dry on the outside and free of any fingerprints, oil or dirt. Wipe the cuvette thoroughly using our microfiber cleaning cloth (HI731318) or a lint-free cloth prior to insertion.
The syringes and tips should be clean and dry as well. Do not rinse with tank water. Rinse with deionized (RODI) water only. Keep the tips with their appropriate syringes during measurement.
Ensure the sample does not contain any debris.
Shaking the cuvette can generate bubbles and this can cause higher readings. To obtain accurate measurements, remove any bubbles by swirling or gently tapping the cuvette.
Do not let the reacted sample stand too long after the reagent has been added as this could affect the accuracy of results.
Discard the sample immediately after the reading has been taken or the glass may become permanently stained.
Clean the syringes and tips before storage.

Marine Magnesium Checker® HC

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