This product can be used for all announcing and paging needs in a Hazardous area / explosive area. Its rugged construction and sturdy design enable installations even in harshest conditions. Available in 3 models viz: 15 watt watt , 25 watt & 40 watt .will suit any amplifier application. Necessary flameproof certification permits installation in Zone 1 or 2 gas group IIA & IIB. IP 65 protection except from the front. Suitable for wall & surface mounting.