JDS c-88quake Earthquake Alarm,Jds Products,c-88quake" /> Polyester Imported Provides early quake warning by detecting an earthquake's sound wave before the destructive shear wave strikes your area Fully adjustable sensitivity setting Automatically resets and shuts off alarm when earthquake stops Can detect earthquakes that occur many miles away to help property and shop owners make informed decisions and check damage to remote Loud, distinctive alarm will wake you up in case collapsing walls fail to do the trick