Ammonia High Range Colorimeter HI733 Hanna Checker - Fresh Water

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Ammonia High Range Colorimeter HI733 Hanna Checker - Fresh Water

SKU: 208627


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Quick Overview

Easily measure the high ranges of ammonia in fresh water. The Hanna HI733 Checker HC Handheld Colorimeter for Ammonia HR bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample and Reagent B. Next, add Reagent A. Last, place the vial into the Hanna Ammonia HR Checker, press the button and read the results. Done.

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Product Questions

This states fresh water. Would it not work correctly for saltwater?
Question by: Corey on Nov 27, 2015 5:40:00 AM
This will not work with saltwater tanks. Mostly for RO water or water quality testing. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Nov 29, 2015 9:43:00 AM

Full Details

HI733 Ammonia High Range Colorimeter Manufacturer's Manual


  • Easier to use and more accurate than chemical test kits
  • Large, easy to read digits
  • Auto shut-off
  • Dedicated to a single parameter
  • Designed to work with HANNA's reagents
  • Uses 10 mL glass cuvettes
  • Small Size, Big Convenience
  • Fits in the palm of your hand


  • Range: 0.0 to 99.9 ppm as NH4+
  • Resolution: .1 ppm
  • Accuracy: ±1.0 ppm ±5% of reading at 20°C
  • Light Source: Photodiode @ 525 nm
  • Light Detector: Silicon photocell
  • Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
  • Battery Type: (1) 1.5V AAA
  • Auto-off: After 2 minutes of non-use
  • Dimensions: 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5")
  • Weight: 64 g (2.25 oz.)
  • Method: Adaptation of ASTM Manual of water and Environmental Technology D1426-92, Nessler Method. Reaction between ammonia and reagents causes a yellow tint in sample.