Viper Ex is a compact scale for hazardous areas. Individual models are available with up to three different weighing platform sizes and in five weighing ranges. Two versions of the scale are available: one that can be used within hazardous areas (Model PSUx); and one that goes into non-hazardous areas. The PSU (non hazardous model) offers the capability to install up to three Viper scales and a data interface for each of the scales. Mettler Toledo 1900 Polaris Parkway Columbus, OH, 43240