YASONG SLA-1501 120dB Power Outage & Power Recovered Alarm Siren, IP65, LED Strobe, Rechargeable Battery Color:Three phase three wire AC380V The YASONG SLA-01H1 timer alarm

The YASONG SLA-01H1 timer alarm siren combines a 0–120dB adjustable horn

metal structures or other obstacles

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

25W alarm power for security and site warning use

LED revolving beacon light for visible warning indication

YASONG SLA-1501 120dB Power Outage & Power Recovered Alarm Siren, IP65, LED Strobe, Rechargeable Battery Color:Three phase three wire AC380V The YASONG SLA-01H1 timer alarmThe 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.