Owner`s manual
Testing and Maintenance
Replacing Wireless Siren/Controller Batteries
Go
to the Wireless Siren/Controller and remove the cover by lifting it up
and away from the bottom.
Remove the old battery and replace it with a new one (Duracell MN1604
or Eveready 522).
Press Cancel for
1 second (you will hear a chirp) to reset the low
battery sensor in the Wireless Siren/Controller.
Replace the cover securely.