SIZE:300X220X65MM HIGHLY RESISTANT PC HOUSING, UV PREVENTION TWIN PIEZO SOUNDERS WITH 120DB AT 1M, SINGLE PIEZO SOUNDER IS OPTIONAL SAB/SCB FUNCTION AVAILABLE POSITIVE/NEGATIVE SIREN TRIGGER POSITIVE/NEGATIVE STROBE TRIGGER BATTERY BACKUP LEN CORLORS IN RED, BLUE, ORANGE, WHITE 2 WAY TAMPER SWITCH PROTECTION LED DIAGRNOSIS INDICATION