713100005 is a signal plate manufactured by Auer Signal of Austria. It is designed to provide a warning signal for hazardous areas, such as oil and gas installations, chemical plants and hazardous environments. The signal plate is made of corrosion-resistant stainless steel, with a highly visible and audible signal. It is suitable for use in any type of hazardous atmosphere, including those with flammable, explosive or corrosive components. The signal plate is equipped with a stroboscope, suitable for synchronizing signaling systems. It has a built in circuit, including lightning protection, dual contact and automatic reset. The signal plate is also certified for use in Zone 1 and Zone 2 hazardous areas.