Ma alarm amunthu ndiofunikira pankhani yachitetezo chamunthu. Alamu yoyenera idzatulutsa phokoso lalikulu (130 dB) ndi phokoso lalikulu, lofanana ndi phokoso la makina osindikizira, kuti alepheretse omwe akuukira ndi kuchenjeza anthu omwe ali pafupi. Kusunthika, kutsegulira kosavuta, komanso phokoso lodziwika la alamu ...
Werengani zambiri