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- Easier to use and more accurate than chemical test kits
- Large, easy to read digits
- Auto shut-off
- 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 to 500 ppm
- Resolution: 1 ppm
- Accuracy: ±5 ppm ±5% of reading at 25°C
- Light Source: Photodiode @ 610 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 10 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. The reaction causes a distinctive range of colors from yellow to green to blue to develop. This meter has been developed to work with fresh water samples.
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Easy To Use Time Saver By Richard on 6/6/2016Richard would recommend this product to a friendI have the marine version of this checker and actually bought this one for my son-in-law who does freshwater. The Hanna checkers are easy to use and most importantly, they eliminate the color matching and interpolation that goes along with that. It takes longer to get the materials out of the (nice) case than it does to run the test. Draw 10 ml of test sample; calibrate unit with it; add 1 ml of reagent; take the reading in a few seconds. Try it, you'll like it!