How to Sound Activate a Siren Alarm

Locate the control box for the sound-activated siren alarm in the building.

Speak the code word for activation you chose upon setup of the unit. If spoken clearly enough into the receiver in the control box the alarm will arm.

Wait for the alarm to arm. You can verify whether it does so by looking at the LED display on the front of the control panel. If it doesn't arm, repeat the code word until the LED display informs you that the alarm is armed.

Set off the alarm by making a sound in the area while the alarm is armed. Of course this method will trip the alarm if you happen to have a home invasion.