Interworld Electronics carries a range of Stainless Steel ATEX certified Box Pcs, Panel PCs and Displays. ATEX is a European Regulatory Framework for manufacture, installation and use of equipment in Explosive Atmospheres. To meet strict mission-critical applications the AEX Series is certified to ATEX Zone 2 standards, IECEx conformity and Class 1 Division 2. Explosive atmospheres can be caused by flammable gases, mists or vapours or by combustible dusts. If there is enough of the substance, mixed with air, then all it needs is a source of ignition to cause an explosion.