Hanna Instruments

Calcium Colorimeter HI758 Hanna Checker - Marine Water

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    Redesigned with new 100 µL Pipette

    Accurately check your reef tanks calcium level with the Hanna HI758 Calcium Checker.

    Three simple steps to results. The Hanna Calcium Checker bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Hanna Calcium Checker, press the button and read the results. Done.


    Easier to use and more accurate than chemical test kits.

    Tips for accurate results:

    • Use Hanna HI70436 Deionized Water
    • Make sure testing vials are clean of any debris
    • Vials must be dry on the outside with no fingerprints
    • Violent shaking will cause microbubbles that can affect the reading
    • Do not let the sample sit too long before taking a reading


    New MiniPipette - The new mini pipette has a 2-stage plunger that will let you accurately dispense your 0.1mL tank water sample. The pipette is spring loaded and will allow you to retrieve and dispense 100 µL. Just attach the pipette tip, and press the button down until it stops the first time. Then place the tip into your tank water sample and slowly let the plunger spring back up. Move the pipette to your testing vial, and press the plunger down to the first stop to dispense the liquid it took in. 


    Dedicated to a single parameter - Designed to work with HANNA's liquid reagents. Uses 10 mL glass cuvettes.


    • Range: 200 to 600 ppm
    • Resolution: 1 ppm (mg/L)
    • Precision: ±6% of reading
    • Light Source: LED @ 610 nm
    • Light Detector: Silicon photocell
    • Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
    • Battery Type: (1) 1.5V AAA
    • Auto-off: After 10 minutes of non-use and after read
    • Dimensions: 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5")
    • Weight: 64 g (2.25 oz.)
    • Method: Adaptation of the zincon method

    Weighing a mere 65 g (2.3 oz.), the Checker®HC easily fits into the palm of your hand or pocket. Use for quick and accurate on the spot analysis. Single button operation: Zero and Measure Operated by a single AAA battery.


    Replacement Reagents - HI758-26 Calcium Checker Reagents



    More Information
    Product Name Calcium Colorimeter HI758 Hanna Checker - Marine Water
    SKU 206202
    UPC 757901787669
    Best Performer No
    Best Value No
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