Review on Hanna Checker Handheld Colorimeter Chlorine by James Larson

According to my experience this Industrial and Scientific substance analysis instrumentation device is the perfect solution for on-the-spot chlorine testing. The DEVICE is compact, easy to use, and highly accurate. The colorimeter can measure chlorine levels in seconds, thereby saving time and money. The only downside is that the device is a bit pricey, but if accuracy and reliability matters to you, this is the perfect investment..