The A151 is a wide are electronic high frequency sounder with a sound output of 150dB. This Electronic Sounder can be configured into complete systems and have the ability to communicate via RS232/485, TCP/IP, Radio Control (VHF, UHF and Tetra) and can be controlled by either LCD control panel or a software solution. Disaster and outdoor warning: Toxic Gas Release (COMAH, SEVESO II), Flood Warning, Tsunami Alert, Civil Defence, Tornado and Weather Warning, Wide Area Fire and Security Alert.