7. Fix the cover to the base with the screw provided, and
then insert the plastic protector cap.
1. Remove the siren cover.
WARNING: PROTECT YOUR EARS AS THE
REMAINING BATTERY POWER MAY SOUND
THE SIREN.
2. Remove the tie-wrap from the batteries.
3. Replace the batteries.
After 10 seconds you will hear short beeps.
4. Secure the cover using the screw.