Wannan kit ɗin ya dogara ne akan fasahar immunochromatography na gasa kai tsaye, wanda pendimethalin a cikin samfurin yana gasa ga colloid zinariya mai lakabin antibody tare da pendimethalin coupling antigen da aka kama akan layin gwaji don haifar da canjin launi na layin gwajin. Launin Layin T ya fi zurfi ko kama da Layin C, yana nuna pendimethalin a cikin samfurin bai kai LOD na kit ɗin ba. Launin layin T yana da rauni fiye da layin C ko layin T babu launi, yana nuna pendimethalin a cikin samfurin ya fi LOD na kit ɗin girma. Ko pendimethalin ya wanzu ko a'a, layin C koyaushe yana da launi don nuna gwajin yana aiki.