Iron Colorimeter Hanna Checker (Freshwater) View larger

Iron Colorimeter Hanna Checker (Freshwater)

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Iron Colorimeter Hanna Checker (Freshwater)

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Determine the iron level in your fresh water. The Hanna HI721 Checker HC Handheld Colorimeter for Iron in fresh water 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, remove sample and add reagent. Last, re-insert sample into the Hanna Iron Fresh Water Checker, press the button and read the results. Done.


Easier to use and more accurate than chemical test kits
Large, easy to read digits
Auto shut-off
Built-in timer for timed reaction readings
Dedicated to a single parameter
Designed to work with HANNA's reagents
Uses 10 mL glass cuvettes
Small Size, Big Convenience
Fits in the palm of your hand


Range:0.00 to 5.00 ppm
Resolution:0.01 ppm (mg/L)
Accuracy: ±0.04 ppm ±2% of reading at 25°C
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 3 minutes of non-use and 10 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:An adaptation of the EPA Phenantroline method 315 B, for natural and treated waters.

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