QD119 aluminum alloy anti-explosion type acoustic and light alarm is our company according to *** new electronic products technology, specially developed for gas detector and its other acoustic and light alarm function requirements for equipment, this product inner core adopts dedicated electronic integrated circuit, work stable, service life long, top equipped with ultra high bright LED emitting diode, multiple angles clearly visible, can effectively warn staff to take steps in time to avoid accidents, aluminum alloy anti-explosion shell, strong and durable, waterproof, shock resistance, corrosion resistance, this acoustic and light alarm also has a small size, light weight, easy installation and other advantages, is a good choice for gas detectors and other safety equipment.