The turbidity water quality sensor, with the principle of 90° scattered and 180°transmission light measurement, can measure turbidity and suspended solids. It is mainly used in the field of surface water, domestic wastewater, and industrial wastewater. The turbidity sensor is equipped with an automatic optical window cleaning function. In addition, with the DL-W-S series meter transmitter and WQS-Server (WQS cloud service), users can realize both on-site and remote data viewing.