XDB403 usoro nrụgide nrụgide dị elu na-anakwere isi ihe nrụgide silicon na-ebubata, ihe mgbawa nke ụlọ ọrụ mmepụta ihe na mmiri ọkụ na tube ihe nchekwa, tebụl ngosi LED, nkwụsi ike dị elu na ntụkwasị obi piezoresistive ihe mmetụta nrụgide dị elu na sekit pụrụ iche nke na-ebugharị arụmọrụ. Mgbe ule kọmputa na-akpaghị aka, ụgwọ okpomọkụ, a na-atụgharị akara millivolt nke ihe mmetụta n'ime voltaji ọkọlọtọ na mmepụta mgbaàmà ugbu a, nke nwere ike jikọọ na kọmputa ozugbo, ngwá ọrụ nchịkwa, ihe ngosi ihe ndị ọzọ, ma nwee ike ịmepụta nnyefe mgbaàmà dị anya. .