The SSX-51 is a patented indoor/outdoor, self-contained, 15 watt, armored siren. The full featured siren consists of a single tone that delivers a warble sound output, light weight, rust-proof aluminum die-cast housing, a 122 dB output siren driver, and a dual action normally open reed plunger switch for normally closed loop. The armored siren does not require additional modules, metal boxes, tamper switches, special tools, or training to install and operate. The SSX-51 series comes completely assembled and ready for installation. The SSX-51S Siren Strobe combination is also available. It is a high quality, high output siren with a 60,000 candle power strobe with available lens colors: amber, blue, clear, and red. The SSX-51 series is ideally suited for noisy, heavy machinery areas, warehouses, loading docks, print shops, busy production floors, or for indoor/outdoor applications where high quality and high output warning is required.