Module A20 ya dogara ne akan amfani da rufaffiyar bincike mai tsaga ruwa.Ultrasonic bincike rungumi dabi'ar anti-ruwa fasahar zane, yadda ya kamata rage matsalar bincike condensation, IP67 dace da matsananci yanayi.
R01 module shine ƙaramin firikwensin Laser mai hana ruwa ruwa tare da kewayon cikin gida na 2-400cm.