YASONG SLA-1501 120dB Power Outage & Power Recovered Alarm Siren, IP65, LED Strobe, Rechargeable Battery Color:Three phase three wire AC380V A built-in 5Ah backup battery

A built-in 5Ah backup battery helps maintain alarm capability when backup power is needed

The magnetic base allows quick placement on suitable metal surfaces

LED flashing warning light for industrial and safety use

The remote controller can adjust the tone

YASONG SLA-1501 120dB Power Outage & Power Recovered Alarm Siren, IP65, LED Strobe, Rechargeable Battery Color:Three phase three wire AC380V A built-in 5Ah backup batteryThe YASONG SLA 1501 power outage alarm siren combines a 120dB adjustable horn, LED strobe warning light and built in rechargeable lithium battery for farms, fish ponds, banks, substations, telecom rooms, hospitals and security areas. This model supports power failure alarm and power recovered alarm modes, selected by the bottom switch. When a power failure or phase loss occurs, the siren sounds and the LED strobe flashes to provide a clear warning.