سنسور سنجش تميزي و کدورت آب با پارت نامبر TSD-10 ، که اساس عملکرد اين سنسور بر اساس نور ميباشد.هنگامي که سنسور در آب ميباشد نور عبوري از از اب بر روي سطح گيرنده ي فوتوترانزيستور نمايانگر درصد تميزي اب ميباشد که ماشين لباس شويي يا هر دستگاهي ديگر توسط اين سنسور مدت زمان شست و شو را تصميم گيري ميکند . جريان مصرفي اين سنسور حدود 30 ميلي آمپر با ولتاژ عملياتي 5 ولت ميباشد.

The sensor operates on the principle that when light is passed through a sample of water, the amount of light transmitted through the sample is dependent on the amount of soil in the water. As the soil level increases, the amount of transmitted light decreases. The turbidity sensor measures the amount of transmitted light to determine the turbidity of the wash water. These turbidity measurements are supplied to the washer controller, which makes decisions on how long to wash in all the cycles. These decisions are made based on a comparison between clean water measurements (taken at the beginning of the wash cycle) and the wash water turbidity measurement taken at the end of each wash cycle. By measuring the turbidity of the wash water, the washing machine can conserve energy on lightly soiled loads by only washing as long as necessary. This will result in energy savings for the consumer.