Electrolyzer Water Quality Tester - Portable Water Impurity Monitor Electrolyzer Machine Testing Meter【High quality material】: The water quality analyzer is made of plastic and metal materials, small and light, strong and durable. 【Utility Tool】: Simple and inexpensive way to test water quality and see the condition of your drinking water. The quality of water that does not contain any substances harmful to the human body and odorous is the best. 【Easy Operation】: Simple operation, use 220V power supply. The test is quick and the test results are obvious. 【Color analysis】: Due to the action of current, the metal particles initially dissolved in water, such as manganese, potassium, cobalt, etc., are reduced and gradually aggregated to form metal clusters. Due to the different color rendering of different metal ions, color separation occurs. Electrolyzed water shows different colors, indicating various impurities in the water. 【Wide Applications】: Ideal detection tool for drinking water, water filtration and purification, hydroponics, aquariums, swimming pools and spas, etc.