Hanna Instruments HI783 – Marine Magnesium Checker® HC 🧂📏
Measure magnesium accurately in your marine or reef aquarium with theHanna Instruments HI783 Marine Magnesium Checker® HC. This compact, handheld colorimeter provides fast digital readings from1,000 to 1,800 ppm—no guesswork, no color charts, easy reef testing.🐠
📌 Precision Magnesium Monitoring
With5 ppm resolutionand ±5% accuracy at 25 °C, the HI783 uses the EDTA method with calmagite indicator and an LED & silicon photocell system for consistent colorimetric measurement.
🖐️ One‑Button Operation
Just zero the meter, add reagents using the included syringes, insert the cuvette, and press one button for your digital magnesium result. Auto shut‑off activates after 10 minutes to save battery.
🔧 Built for Reef Use
Designed for marine conditions, with stable operation between 0–50 °C and up to 95% humidity. Compact at 86 × 61 × 37.5 mm and only 64 g, it’s portable and reef-tank ready. Starts with a 25-test reagent pack included (HI783‑25).
🔗 Includes Starter Reagents
Kit includes a genuineHI783‑25 reagent pack (25 tests), perfectly matched for accurate results.
🔑 Key Features
- Range: 1,000–1,800 ppm Magnesium
- Resolution: 5 ppm | Accuracy: ±5% at 25 °C
- EDTA colorimetric method with calmagite
- Includes color-coded syringes, cuvettes, and reagent set
- One-button testing with LCD readout
- Auto shut-off after 10 minutes idle
- Compact, lightweight, reef-compatible design
📦 What’s Included
- HI783 Magnesium Checker® HC meter
- Starter reagent pack (HI783‑25, 25 tests)
- Two 10 mL cuvettes with caps
- Color-coded 5 mL syringes
- AAA battery
- Protective carrying case
- Instruction manual & quick reference guide
Maintain optimal reef health with theHanna HI783 Checker® HC—fast, reliable, and built for accurate magnesium testing.💧
More Information
| Item | Hanna Instruments Marine Magnesium Checker HC |
| Model Number | HI783 |
| Range | 1,000–1,800 ppm Magnesium |
| Resolution | 5 ppm |
| Accuracy | ±5% at 25 °C |
| Method | EDTA + calmagite colorimetric |
| Light Source/Detector | LED @ 610 nm / Silicon photocell |
| Battery | 1.5 V AAA alkaline |
| Auto Shut‑Off | After 10 minutes idle |
| Operating Conditions | 0–50 °C; ≤95% RH non‑condensing |
| Dimensions & Weight | 86 × 61 × 37.5 mm; 64 g |
| Reagent Set Included | HI783‑25 (25 tests) |
| Warranty | 1 year |
Need more tests? Shop HI783‑25 reagent pack or browse our complete Hanna Instruments collection atSqueaky’s Aquatics.
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