The ATEX directive has been in force for some years now; but the important criteria that must be considered when selecting an ATEX-certified device, such as a level sensor, a valve, a flow sensor, a pump - or any other piece of equipment for use in hazardous, potentially explosive environments, are often misunderstood. Now, Bürkert is helping users across all process markets to overcome this problem with the production of a useful ATEX poster.