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5Ah backup battery for added power continuity
This 23W alarm operates through a wired power-on control
The YASONG SLA-090-II LED beacon siren light combines a 0–120dB adjustable horn
USB custom audio upload for personalized warning sound
This siren requires wiring and does not include a built-in battery
YASONG SLA-003 110dB Power Outage Alarm Siren, 23W, IP65, LED Strobe, 1.2Ah Backup Battery collection-solar-powered-alarms 5Ah backup battery for addedThe YASONG SLA 003 power outage alarm siren combines a 110dB loud horn, LED strobe warning light and built in 1. 2Ah rechargeable battery for farms, fish ponds, banks, substations, telecommunications rooms, hospitals, factories and security areas. This model works by power failure activation: after power is supplied, the siren stays in standby mode. When power is cut off, it triggers both audible and visual alerts. 110dB default siren sound for clear
