WP380 usoro Ultrasonic Level Meter bụ ngwa nwere ọgụgụ isi na-enweghị kọntaktị, nke enwere ike iji kemịkalụ, mmanụ na tankị nchekwa mkpofu. Ọ dabara nke ọma maka ihe ịma aka na-emebi emebi, mkpuchi ma ọ bụ ihe mkpofu. A na-ahọrọ ihe mgbasa ozi a maka nchekwa nnukwu ikuku, tankị ụbọchị, arịa nhazi na ngwa mkpofu. Ihe atụ mgbasa ozi gụnyere ink na polymer.