Hanna Pocket Checker for Testing Iron - Freshwater and Marine

The Hanna HI721 Iron Checker gives quick accuate results for the price of a chemical test kit. It uses the phenanthroline method and has an accuracy ±0.04 ppm (mg/L) ±2% of reading and a resolution of 0.01 ppm (mg/L) resolution (250 points). Water quality can be tested and controlled quickly and accurately with these professional quality meters, but at a fraction of the cost of their more sophisticated sister meters in our photometer range. Perfect for control testing in laboratories and for teams of engineers where each operator needs his or her own set of portable test instrumentation, Hanna Checkers have proved hugely popular since their launch in 2010. Main Benefits

• Testing is quick and easy
• High precision results - more accurate than chemical test kits
• Auto shut-off feature means the Checker cannot be left on by mistake
• Fully portable, fitting easily into both palm and pocket

Supplied with:

• 2 sample cuvettes
• Cuvette cap
• Starter pack of reagents
• 1 x 1.5 AAA battery
• Instructions

Four steps, one click instant readout

1. Zero the Checker
2. Add reagent
3. Insert sample into Checker
4. Press button for results