High Range Ammonia Checker HC for Fresh Water - Aquaponics For Life

High Range Ammonia Checker HC for Fresh Water

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Product Description

The HI 733 High Range Ammonia Checker HC is a simple, accurate, and cost effective way to measure high ranges of ammonia in freshwater.

Designed as a more accurate alternative to chemical test kits, the HI 733 provides quick, accurate results in four easy steps.

  1. Step One – Add 1ml of sample and 9ml of reagent “B” to the included cuvette.
  2. Step Two – Insert sample into the Checker and zero it out
  3. Step Three – Remove sample and add reagent “A”
  4. Step Four – Reinsert sample and click the button to measure your results or…- Press and hold the button for 3 seconds for a time reaction reading


The HI 733 uses an adaptation of the ASTM Manual of water and Environmental Technology D1426-92, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample.


  • Small palm-sized design
  • Accurate from ±1.0ppm ± 5% of reading
  • Dedicated to a single parameter
  • Uses a single AAA battery
  • Auto Power Off after 10 minutes in inactivity
  • Built-in timer for timed reaction readings


  • Water Quality
  • Education
  • Freshwater Aquariums
  • Wastewater
  • Environmental

Includes:The HI 733 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (1bottle of HI 733A-0 and 1 bottle of HI 733B-0), 1 x1.5V AAA battery, and an instruction manual