HI733* Checker HC ® - Ammonia, HR

Product information "HI733* Checker HC ® - Ammonia, HR"

The HI 733 Checker®HC is a simple, accurate, and cost effective way to measure high ranges of ammonia in fresh water. 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.

Order Information: 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.


Specification :
Range 0.0 to 99.9 ppm as NH4+
Resolution 0.1 ppm
Accuracy (@20°C/68°F) ±1.0ppm ±5% of reading
Measurement Method Colorimetric
Light Source Photodiode @470 nm
Light Detector Silicon photocell
Method 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.
Power Supply Battery - 1 x 1.5V AAA
Power Auto Off After 10 min. of inactivity
Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Dimensions 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight 64 g (2.25 oz.)