200mg l electronic chlorine tester

...Electronic Swimming Pool Spa Water PH CL2 Chlorine Tester White Description Ph Chlorine Level Tester,this meter can test water Ph and Cl2 easily.Large screen showing the testing result on both PH and chlorine level.No chemical agent need .Difficult to know the PH value and the chlorine......

...Tester Oxidation reduction is a process by which a molecule or ion losesor gains electrons. This occurs most readily in water treatment and in pool and spa maintenance where an oxidizer, such as chlorine, is added to the water to destroy contaminants. The higher the ORP value, the greater the sanitizing power of your water. HI98201 is ideal for swimming pools and spas and can provide a valuable indication of water quality. This tester...