Hanna Checker - Nitrate LR (NO3) Colorimeter

The HI781 Nitrate Checker LR by Hanna Instruments is a simple and accurate handheld colorimeter that uses the Beer-Lambert principle to determine nitrate concentration.

The HI781`s low range of 0.00 - 5.00 makes it ideal for measuring the low nitrate levels found in Saltwater aquariums.

Why are Nitrate levels important?

Excess nitrates in a Reef system can lead to an overgrowth of undesirable algae and dinoflagellates. Alternatively, not enough nitrates can lead to starvation for SPS and other corals.

Features

• Low range is ideal for saltwater aquariums
• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Simple one-button operation
• Digital read out for added convenience

Specifications

• Range: 0.00 to 5.00 pm (m/L) NO3
• Resolution: 0.01 pH
• Accuracy @ 25°C/77°F: ±0.25ppm ±2% of reading
• Light Source: LED @ 525 nm
• Light Detector: Silicon Photocell
• Method: Zinc reduction method
• Auto-off: after ten minutes of non-use
• Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
• Battery Type: (1) 1.5V AAA
• Ordering Information: HI-781 Checker HC is supplied with sample cuvettes with caps (2), reagent starter set, battery, and instructions
• Accessories purchased separately: HI-781-25 Reagent set for approx. 25 tests + HI-781-11 Calibration set