Hanna HI708 Nitrite HR Checker

Hanna HI708 Nitrite HR Checker

The Hanna HI708 Nitrite HR Checker is a compact and highly accurate digital colorimeter designed to measure high concentrations of nitrite (NO₂⁻) in marine, saltwater, and freshwater environments. Offering a significant upgrade over conventional chemical test kits, this handheld device provides fast and reliable digital readings with minimal effort, making it ideal for aquarists, marine biologists, and water quality professionals.

Utilizing an adaptation of the Ferrous Sulphate method, the HI708 reacts with nitrite to produce a greenish/brown tint in the sample. The device’s LED light source and silicon photocell detect this color change and display the result numerically in parts per million (ppm), allowing for precise and repeatable measurements in just four simple steps.

Features

• High Range Nitrite Measurement (0 to 150 ppm NO₂⁻)
  Designed to monitor elevated nitrite concentrations in demanding aquatic environments, including marine tanks and aquaculture systems.

• Accurate and Reliable Results
  Provides ±3 ppm ±5% of reading accuracy and 1 ppm resolution, ensuring trustworthy measurements without interpretation errors.

• Compact, Palm-Sized Design
  Lightweight and portable—ideal for field testing or routine aquarium maintenance.

• Easy One-Button Operation
  Simplifies the testing process and reduces training time for users.

• EPA-Adapted Methodology
  Based on the Ferrous Sulphate method, which ensures consistency with established analytical procedures.

• Digital LCD Display
  Clearly shows nitrite levels without relying on subjective color charts.

• Automatic Shut-Off
  Conserves battery life by powering down after 10 minutes of inactivity.

• Complete Starter Kit Included
  Ready to use with reagents for 6 tests, cuvettes, battery, and instructions.

Applications

The HI708 Nitrite Checker HC supports a wide range of applications requiring high-range nitrite monitoring:

• Marine and Saltwater Aquariums
  Ideal for advanced reef tanks and saltwater aquaria where nitrite spikes can be harmful to marine organisms.

• Freshwater Aquariums
  Supports large-scale or heavily stocked systems where nitrite buildup may occur.

• Aquaculture and Hatcheries
  Maintains optimal water chemistry in fish farms and breeding facilities.

• Environmental and Industrial Water Testing
  Useful for nitrate control in effluent streams and waste treatment processes.

• Research and Laboratory Use
  Perfect for field researchers and water quality labs needing fast, portable nitrite testing.

Specifications

• Model: HI708

• Measurement Range: 0 to 150 ppm NO₂⁻

• Resolution: 1 ppm

• Accuracy @ 25°C: ±3 ppm ±5% of reading

• Light Source: LED @ 575 nm

• Light Detector: Silicon photocell

• Method: Adaptation of the Ferrous Sulphate method

• Operating Temperature: 0 to 50°C

• Operating Humidity: Up to 95% RH, non-condensing

• Battery Type: One 1.5V AAA

• Auto-Off: After 10 minutes of inactivity

• Dimensions: 81.5 × 61 × 37.5 mm

• Weight: 64 g

• Included in Package:

  • HI708 Checker HC

  • (2) Sample cuvettes with caps

  • Nitrite HR reagent starter kit (6 tests)

  • (1) AAA battery

  • Instruction manual

  • Quick start guide