The Hanna HI721 Checker Iron Free Range is a handheld test kit designed to measure iron levels in water samples accurately and conveniently. This device uses the phenanthroline method, providing an accuracy of ±0.04 ppm (mg/L) with a resolution of 0.01 ppm (mg/L). It weighs only 65g, making it portable enough for quick on-the-spot analysis without compromising on precision or functionality. The HI721 is ideal for aquarium enthusiasts looking to maintain optimal water quality by closely monitoring iron levels, which can affect the health and vitality of marine life.
| Manual | Hanna Checker High Range Iron HI721 Manual |
| Manufacturer | Hanna Instruments |
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Hanna HI721 Checker Iron Free Range
Test Kits
Reference reading: Species guide on Codexery
Species guides on Codexery
- Lyretail anthias — Scientific name: Pseudanthias squamipinnis · Family: Serranidae (subfamily Anthiinae) source
- Flame hawkfish — Scientific name: Neocirrhites armatus · Family: Cirrhitidae source
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