Nhanganyaya kune zvigadzirwa zvemhando uye zvakanakira zve ultrasonic yakavhurika chiteshi inoyerera mita.
Ultrasonic yakavhurika chiteshi chekuyerera mita inoshandisa ultrasonic uye inoyera mwero wemvura uye kureba-hupamhi hweyero yekudiridza canal weir trough nekubata, uye ipapo iyo microprocessor inoverengera iyo inoenderana nekuyerera kukosha.