Wannan kayan aiki ya hada hanyar watsawa da hanyar watsawa, yana amfani da tushen haske na kusa da infrared don kawar da tsangwama na launi, ya dace da ka'idodin ISO7027. Kayan aiki ya gina 90 ° da 180 ° biyu masu ganowa, 90 ° masu ganowa karɓar watsa haske, 180 ° masu ganowa karɓar watsa haske, watsa haske da watsa haske ƙarfin rabo daidai da turbidity a samfurin, don haka canza darajar turbidity na samfurin ruwa.