Outdoor siren with optical and acoustical signaling intended for use in intruder alarm systems. Optical signaling source are LEDs, and acoustical signaling is generating by piezo transducer. Device is equipped with internal sealed lead acid backup battery with a capacity of 1.2Ah.

High-impact polycarbonate enclosure, featuring a very high mechanical strength and guarantees aesthetic appearance of siren even after many years of using. Construction enables high level of tamper protection (against opening and removing from mounting surface).