A20-modul gbadoro ụkwụ na iji nyocha mmiri na-adịghị gbawara agbawa mechiri emechi.Ihe nyocha Ultrasonic na-anabata imewe teknụzụ mgbochi mmiri, nke ọma belata nsogbu nke condensation nyocha, IP67 dabara maka gburugburu ebe siri ike.
R01 modul bụ obere ihe mmetụta laser na-egbochi mmiri nke nwere oke ime ụlọ nke 2-400cm.