The SPLZ-1011-R optical-acoustic outdoor siren performs the signaling function in two ways: red optical signaling (by means of blinking LEDs) and acoustical signaling (by means of modulated high-volume sound signal).

The device is equipped with 2 control inputs - possibility to select the control method. Construction enables high level of tamper protection (against opening and removing from mounting surface).

Internal shield made of galvanized plate ensure an additional protection of electronics against mechanical damage. High-impact polycarbonate enclosure, featuring a very high mechanical strength and guarantees aesthetic appearance of siren even after many years of using.