Hanna Iron Checker HI721

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    Hanna Iron Checker HI721

    Product code: 2497

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    Availability: In stock

    Ships today if ordered in the next 5 hours and 39 minutes!

    Reward Points Policy 489 AQUAPOINTS
    Hanna Iron Checker HI721The new HI 721 CheckerHC portable handheld colorimeter features a resolution of 0.01 ppm (500 points) and 0.04 ppm 2% of reading accuracy. The HI 721 CheckerHC uses an adaptation of Standard Method 315 B.

    Hanna Iron Checker HI721.

    • Easier to use and more accurate than chemical test kits

        Phenanthroline method   
        ±0.04 ppm ±2% of reading accuracy
        0.01 ppm (mg/L) resolution (500 points)
        Large, easy to read digits
        Auto shut off

    • Dedicated to a single parameter

        Designed to work with HANNA’s powder reagents
        Uses 10 mL glass cuvettes

    • Small size, big convenience

        Weighing a mere 64 g (2.25 oz.), the Checker®HC easily
        fits into the palm of your hand or pocket
        Use for quick and accurate on the spot analysis
        One button operation: zero and measure
        Operated by a single AAA battery

    • Ideal for:

        Industrial, ground and treated waters, mining leachate monitoring and
        agricultural irrigation water

    • For use in fresh and saltwater


    The HANNA HI 721 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 721 Checker®HC is accurate and affordable with immediate results.

    The new HI 721 Checker®HC portable handheld colorimeter features a resolution of 0.01 ppm (500 points) and ±0.04 ppm ±2% of reading accuracy. The HI 721 Checker®HC uses an adaptation of Standard Method 315 B.

    The contoured style of this Checker®HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.

    The HI 721 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the  HI 721 Checker®HC, press the button and read the results. It’s that easy.

    Product Information:
    HI 721 Checker®HC is supplied with sample cuvettes with caps (2), powder reagents for iron (6), battery and instructions.

    Range   0.00 to 5.00 ppm (mg/L)
    Resolution   0.01 ppm (mg/L)
    Accuracy @ 25°C   ±0.04 ppm ±2% of reading
    Light Source   LED @ 525 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 three minutes of non-use and ten seconds after reading
    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 EPA Phenantroline method 315 B, for natural and treated waters.

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    48.95 In stock