STEP 01 / 02SELECT ALERT TYPE
SIREN CONFIGURATION
Select alert protocol — system will run for 24:00:00 from activation
STANDBY
SELECTED PROTOCOLSRN-002
AIR RAID / CIVIL DEFENSE
Rising and falling wail. Indicates imminent aerial or civil threat. Seek shelter immediately.
PatternSustained Wail
Frequency440Hz → 880Hz
Duration24:00:00
Threat Level
CRITICAL
WAVEFORM PREVIEW
STEP 02 / 02ACTIVATE ALERT
Protocol SRN-002 — Air Raid / Civil Defense
Timer will begin immediately. Alert runs for exactly 24 hours.