Hanna Iron Checker HI721
For use in fresh and saltwater
The new HI 721 Checker HC portable handheld colorimeter features a resolution of 0.01 ppm (500 points) and 0.04 ppm 2% of reading accuracy. The HI 721 CheckerHC uses an adaptation of Standard Method 315 B.
Hanna Iron Checker HI721.
- Easier to use and more accurate than chemical test kits
Phenanthroline method
±0.04 ppm ±2% of reading accuracy
0.01 ppm (mg/L) resolution (500 points)
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
One button operation: zero and measure
Operated by a single AAA battery
- Ideal for:
Industrial, ground and treated waters, mining leachate monitoring and
agricultural irrigation water
- For use in fresh and saltwater
The HANNA HI 721 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 721 Checker®HC is accurate and affordable with immediate results.
The new HI 721 Checker®HC portable handheld colorimeter features a resolution of 0.01 ppm (500 points) and ±0.04 ppm ±2% of reading accuracy. The HI 721 Checker®HC uses an adaptation of Standard Method 315 B.
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 721 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the HI 721 Checker®HC, press the button and read the results. It’s that easy.
Product Information:
HI 721 Checker®HC is supplied with sample cuvettes with caps (2), powder reagents for iron (6), battery and instructions.
| Range | 0.00 to 5.00 ppm (mg/L) | |
| Resolution | 0.01 ppm (mg/L) | |
| Accuracy @ 25°C | ±0.04 ppm ±2% of reading | |
| 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 three minutes of non-use and ten 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 | adaptation of the EPA Phenantroline method 315 B, for natural and treated waters. |
Product code: 2497
Item No. TE-HI721
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