Online 4 channels Water Quality Multi parameter Controller with DO Ammonia Nitrogen EC PH Sensors

The online 4-channel controller supports the simultaneous connection of up to 4 digital sensors and displays up to 5 parameters including temperature. At present, the monitoring parameters supported by the multi-parameter controller are: PH, ORP, conductivity, dissolved oxygen, turbidity, COD, ammonia nitrogen, residual chlorine, oil in water, etc. This water quality multi-parameter controller has 3.2-inch LCD display and an RS485 digital interface for data transmission, and supports connection to various industrial control equipment.