Chlorine is an important chemical used in water treatment. It helps keep our drinking water safe by killing harmful germs and bacteria. A chlorine residual sensor is a device that measures the amount of chlorine left in the water after it has been treated. This is important because if there is too little chlorine, the water may not be safe to drink. But, if there is too much chlorine, it can also be harmful. By using a chlorine residual sensor, water treatment plants can ensure the right amount of chlorine is in the water. JIDE makes high-quality chlorine residual sensors that help in this process. These sensors are reliable and easy to use, making it easier for water treatment facilities to keep our water safe.