HI-721 High Range Iron Handheld Colorimeter

HI-721 High Range Iron Handheld Colorimeter – Checker® HC

Portable Iron Tester for Fast, Accurate Water Quality Monitoring

The HI-721 Checker® HC by Hanna Instruments is a compact handheld colorimeter designed for high-range iron testing in water samples. Offering laboratory-grade accuracy at the cost of a chemical test kit, it’s ideal for aquaculture, irrigation systems, swimming pools, and groundwater monitoring.

Using the phenanthroline method, the HI-721 delivers precise measurements from 0.00 to 5.00 ppm, with ±0.04 ppm accuracy and 0.01 ppm resolution. Its large digital display, auto shut-off, and palm-sized design make it easy to use in the field or lab. Compatible with Hanna reagents, it ensures consistent and reliable results for professionals and hobbyists alike.

Key Features:

• Measurement Range: 0.00 to 5.00 ppm (mg/L)
• Method: Phenanthroline
• Accuracy: ±0.04 ppm
• Resolution: 0.01 ppm
• Display: Large, easy-to-read digits
• Operation: Simple one-button interface
• Power: Auto shut-off for battery conservation
• Design: Compact, fits in the palm of your hand
• Reagents: Compatible with Hanna reagents
• Applications:
  
  • Aquaculture (marine, saltwater, freshwater)
  • Groundwater and runoff monitoring
  • Agriculture and small holdings
  • Quality control in water systems