Hanna Marine Ammonia Checker HI784

Handheld Colorimeter for Accurate Marine Ammonia Testing

The Hanna HI784 Marine Ammonia Checker HC is a compact, handheld colorimeter designed to provide fast and accurate measurements of ammonia levels in saltwater aquariums. Using the Beer-Lambert principle, this checker delivers precise colorimetric readings from 0.00 to 2.50 ppm, making it ideal for coral, fish, or fish-only marine tanks.

Monitoring ammonia is critical for maintaining healthy marine life, as elevated ammonia can harm fish and corals, causing illness or even death. The HI784 simplifies this task with laboratory-grade accuracy in a user-friendly, portable design.

Key Features

• Accurate & reliable: ±0.05 ppm ±5% of reading at 25 °C (77 °F)

• Range: 0.00 to 2.50 ppm (mg/L) NH₃

• Resolution: 0.01 ppm (mg/L)

• Light Source: LED at 610 nm

• Light Detector: Silicon photocell

• Method: Adaptation of the Salicylate Method; produces a blue-green tint when ammonia reacts with the reagent

• Portable & convenient: Small, handheld design with auto shut-off after 10 minutes

• Battery: 1.5V AAA Alkaline

• Environment: 0–50 °C, max. 95% RH (non-condensing); sample cuvette must be 18–29 °C

Benefits

• Easier to use than chemical test kits: Minimizes human error from color comparison

• Ideal for marine aquariums & aquaculture: Perfect for both hobbyists and professionals

• Rapid results: Quick testing to prevent ammonia-related issues before they affect your marine life

Applications

• Marine aquariums and reef tanks

• Saltwater fish-only aquariums

• Aquaculture monitoring

• Marine biology research