Features: This 220V/230V power failure alarm automatically detects outage and a loud 120dB sound and light alerts, providing fast notification for critical security needs. Featuring adjustable volumes settings, high decibel output, and strong ABS and PCB construction, this automatic alert systems ensures stable performances in various environments. Designed for homeowners, industrial operators, and aquaculture managers, the security alarm safeguards against power disruptions in sensitive settings. Ideal for cold storage facilities, fish farms, and manufacturing plant, the power outage detector enhances safety by monitoring electric in real time. Its simple installation and robust design make this outage alert device an essential tool for maintaining uninterrupted security in power critical applications. Specifications: Component : ABS, PCB Size: about 112x72x43mm/4.41x2.83x1.7inch Working electric : 220V/230V Sound volumes: 120dB Power supply battery: 9V 6F22 square battery (included) Package Includes: 1xAutomatic Power Outage Alarm note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.