Hanna Free Chlorine Checker HC

The Hanna Free Chlorine Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Free Chlorine Checker uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.

Free Chlorine Range	0.00 to 2.50 ppm
Free Chlorine Resolution	0.01 ppm
Free Chlorine Accuracy	±0.03 ppm ±3% of reading
Chlorine Method	Adaptation of USEPA method 330.5. The reaction between free chlorine and the DPD reagent causes a pink tint in the sample.
Photometer/Colorimeter Light Source	LED @ 525 nm
Photometer/Colorimeter Light Detector	silicon photocell
Battery Type/Life	(1) 1.5V AAA
Automatic Shut-Off	after two minutes of non-use
Environment	0 to 50°C (32 to 122°F); RH max 95% non-condensing