Dowco Weatherall Plus Cover Alarm Add extra security to any Dowco WeatherAll Plus Cover or Dowco ATV Cover. The alarm features a battery-powered pin-pull that emits an ultra loud tone activated by unauthorized movement of the cover. The alarm is hidden underneath cover so only you know that alarm is there. Features Emits an 130dB warning when cover is removed Battery-powered (9-volt, not included) no special wiring required Installs in minutes with no tools Patented