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    อุปกรณ์วัดอัลคาลินิตี้ (Checker®HC Handheld Colorimeter – Alkalinity)

    HI 755

    Checker®HC Handheld Colorimeter – Alkalinity 

    • Easier to use and more accurate than chemical test kits

        Colorimetric method
    Accuracy ±5 ppm ±5% of reading
    1 ppm (mg/L) resolution
    Large, easy to read digits
    Auto shut off

    • Dedicated to a single parameter

        Designed to work with HANNA’s liquid 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
    Single button operation: zero and measure
    Operated by a single AAA battery

    • Ideal for Saltwater Aquariums


    The HANNA HI 755 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and have low resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 755 Checker®HC is accurate and affordable.

    The Checker®HC features an accuracy of ±5 ppm (mg/L) ±5% of reading and uses the colorimetric method.

    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 755 Checker®HC is extremely simple to use. After zeroing the instrument with your water sample, add the reagent to the cuvette and gently invert 5 times. Then insert the cuvette into the HI 755 Checker®HC and press the button to read the results. It’s that easy.



    Order Information:
    HI 755 Checker®HC is supplied with (2) sample cuvettes with caps, liquid reagents for alkalinity (25 tests approx.), syringe with tip, ­­­battery and instructions.



    Range   0 to 300 ppm (mg/L)
    Resolution   1 ppm (mg/L)
    Accuracy @ 25°C   ±5 ppm (mg/L) ±5% of reading
    Battery Type   (1) 1.5V AAA
    Light Source   LED @ 610 nm
    Light Detector   silicon photocell
    Environment   0 to 50°C (32 to 122°F); RH max 95% non-condensing
    Auto-off   after ten minutes of non use
    Dimensions   81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
    Weight   64 g (2.25 oz.)
    Method   colorimetric method


    HI 38018
    Free Chlorine Test Kit

    Product Description:

    Free chlorine reacts with ammonium ions and organic compounds to form chlorine compounds resulting in diminished disinfecting capabilities compared with free chlorine. These chlorine compounds together with chloramines form combined chlorine. Combined chlorine and excess free chlorine together result in total chlorine. While free chlorine has a much higher disinfectant potential, combined chlorine has a much higher stability and has a lesser volatility. There should be sufficient levels of unreacted free chlorine for adequate disinfection, but not so much as to become harmful.

    Order Information: 
    HI 38018 test kit comes with HI 93701-0 free chlorine reagent (200 packets), demineralizer bottle with cap for 12 L, checker disc, glass vials with caps (2) and 3 mL plastic pipettes.


    Method         Checker Disc
    Range         0.00-0.70 mg/L
    0.0-3.5 mg/L
    Smallest Increment         0.02 mg/L
    0.1 mg/L
    Chemical Method         DPD
    Number of Tests         200
    Weight         647 g

  • Requesting a Quotation and Ordering Products

    131 Thailand Science Park. Innovation Cluster 1 Building,

    Klong 1, Klong Luang, Pathumthani 12120 Thailand. 

    Tel.  02-191-3928 Fax 02-191-3929

    For more information please contact 081-847-6768 (Ms. Nareerat) IDLine: @alltestkit

    E-mail :


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