Hanna Instruments Marine Ammonia Checker HC HI784

The HI784 Marine Ammonia Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of ammonia colorimetrically. The HI784 is designed specifically to measure ammonia levels in a saltwater aquarium. The 0.00 to 2.50 ppm range is ideal for coral/fish or fish-only aquarium maintenance.

Ideal for aquariums and marine biology

Easier to use and more accurate than chemical test kits

Small size, big convenience

Primary Applications: Marine, Saltwater Aquariums, Aquaculture

Ammonia is a by-product of the Nitrogen cycle. Ammonia is normally removed by nitrifying bacteria, but ammonia levels can rise if there is an imbalance in the tank water chemistry. Excessive ammonia in a marine aquarium increases the risk of inhabitant illness or death.

Range 0.00 to 2.50 ppm (mg/L)

NH3 Resolution 0.01 ppm (mg/L)

Accuracy ±0.05 ppm ±5% of reading @ 25 °C (77 °F)

Light source Light Emitting Diode @ 610 nmLight detector Silicon photocell Method Adaptation of the Salicylate Method. The reaction between Ammonia and Ammonium and the reagent causes a blue-green tint in the sample. Environment 0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing Prepared sample cuvette (sample plus reagents) must be 18 to 29 °C (65 to 85 °F).

Battery type 1.5V AAA Alkaline Auto shut-off After 10 minutes of non-use

Dimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”)

Weight64 g (2.3 oz)