Outdoor sound & flash siren strobe siren

Highly Resistant PC Housing, UV Prevention
Inside Metal Cover for Double Protection
Magnetic Dynamic Sounders with 120dB at 1m 
Positive/Negative Siren Trigger
Positive/Negative Flash Trigger
Battery Backup
LEN Colors: Red, Blue, Orange, White
2 Way Tamper Switch Protection
Size: 275*190*92mm