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    เครื่องโฟโตมิเตอร์-พีเอช,ความกระด้างทั้งหมด (pH and Total Hardness Photometer)

    HI 93725

    pH and Total Hardness Photometer with 555 nm LED

              Constant monitoring of hardness levels is critical in many applications.

    Water hardness is easily noticed in laundry applications, where its presence greatly reduces the effectiveness of soaps and detergents.

    High levels of hardness in the water supply is also a major industrial concern.

    The scaling caused by hard water in pipes and equipment can cause costly loss of efficiency and result in the failure of machinery.

    Unlike multi-parameter colorimeters or spectrophotometers, the HI 93725 is very simple to operate: just zero your sample, pour the reagent in the cuvet, and take a direct reading.

    Order Information:
    HI 93725 is supplied with 3 cuvets, battery and instructions.


    Range pH 5.9 to 8.5 pH
    Range Total Hardness 0.00 to 4.70 mg/L
    Resolution pH 0.1 pH
    Resolution Total Hardness 0.01 mg/L
    Accuracy pH ±0.1 pH
    Accuracy Total Hardness ±0.11 mg/L ±5% of reading
    Light Source   LED 555 nm
    Light Life   Life of the instrument
    Light Detection   Silicon Photocell
    Battery Type / Life   1 x 9V / approx. 40 hours of continuous use;
    auto-off after 10 minutes of non use
    Environment   0 to 50°C (32 to 122°F); RH max 95% non-condensing
    Dimensions   180 x 83 x 46 mm (7.1 x 3.3 x 1.8″)
    Weight   290 g (10 oz.)
    Method pH Phenol red method
    Method Total Hardness Adaptation of the Standard Methods for the
    Examination of Water and Wastewater, 18th ed. Calmagite/Colorimetric method


    HI 93703-50 Solution for Cleaning Cuvets


    HI 731321 Glass Cuvet for HI 937xx & HI 832xx Series Meters
    HI 731325 Cuvet Cap Turbidity Meters & HI 937xx Series Meters
    HI 710009 Shockproof Boot, Blue
    HI 710010 Shockproof Boot, Orange
    HI 731318 Tissue for Wiping Cuvets
    Reagents & Standards
    HI 93710-01 pH, Phenol Red Method (100 Tests)
    HI 93710-03 pH, Phenol Red Method (300 Tests)
    HI 93719-01 Hardness, Magnesium, EDTA Method (100 Tests)
    HI 93719-03 Hardness, Magnesium, EDTA Method (300 Tests)


  • 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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