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Hanna HI 723 Checker High Range Chromium VI Photometer HI723

Hanna Instruments

  • $ 4700

Item Description: Brand New Hanna Instruments HI 723 Checker®HC Chromium VI HIGH RANGE Photometer 0-999ppb




HI 723

Checker®HC Handheld Colorimeter - Chromium VI High Range




Range   0 to 999 ppb
Resolution   1 ppb
Accuracy @ 25°C   ±5% of reading ±5 ppb
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 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   adaptaion of the ATSM, Manual of Water and Enviornmental Technology, D 1687-92, Diphenylcarbohydrazide method


  • Easier to use and more accurate than chemical test kits

Diphenylcarbohydrazide method
Accuracy ±5 ppb ±5% of reading
1 ppb (µg/L) resolution
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
Single button operation: zero and measure
Operated by a single AAA battery

  • Ideal for Water Quality


There are two natural forms of ionic chromium, the hexavalent ion, Cr (VI) and the trivalent Cr (III). Cr (III) is much less toxic than Cr (VI) and seldom found in potable waters. Cr (VI), however, is toxic to humans and is found in water. Even though the toxic effects from Cr (VI) in drinking water are not well documented, it is a suspected carcinogen. The maximum permissible level or Cr (VI) allowed to be released into the waterways is 50 ppb. Its level in drinking water is normally much lower and a lever higher than 3 ppb is suggestive of industrial pollution.

By monitoring this parameter with the HANNA HI 723 Checker®HC, serious health and safety risks can be avoided.

The HI 723 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent, shake vigurosly for 10 seconds. Last, place the vial into the Checker®HC, press the operational button for about 3 seconds and the display will show the countdown prior to the measurement or, alternatively, wait for 6 minutes and press operational button. When the timer ends the meter will perform the reading. The Checker®HC displays concentration in ppb of chromium VI. It’s that easy.

Order Information:
HI 723 Checker®HC is supplied with sample cuvettes with caps (2 ea.), power reagents for chromium VI HR (6), battery and instructions.





We also carry the other Hanna Checkers -

Free Chlorine
Total Chlorine
and more! 

 Look to NI Supply for more details later...




National Industrial Supply
30777 Rancho California #891420
Temecula, CA 92589, USA
Sales: 951.308.9269
Fax: 310.833.7306 


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