Hashingiwe ku gisubizo cya mikoro y’umukiriya ya electret condenser, Aopuxin yatangije igisubizo cy’igerageza rimwe cyangwa abiri kugira ngo yongere ubushobozi bwo gupima ibicuruzwa by’umukiriya ku murongo w’umusaruro.
Ugereranyije n'icyumba kidahindagurika kidakoresha amajwi, ubu buryo bwo gupima bufite ingano nto, ibyo bigakemura ikibazo cy'ibizamini kandi bikazana igiciro cyiza. Bishobora kandi kugabanya ikiguzi cyo gucunga ibicuruzwa.