The 300g capacity A&D HL-WP Washdown Series scales will handle your most challenging environments such as outdoors, professional kitchens, chemical/food processing plants, recycle centers, fisheries and more. The HL-WP is as close to a submarine as you can get with a digital electronic scale. Underneath the rugged exterior NEMA-4X stainless steel body are fully encapsulated load cell, display and mainboard. The load cell is allowed to "breathe" due to the exclusive Gor-tex ventilation membranes. Air can penetrate but moisture can't! In fact, A&D claims they've been unsuccessful in trying to destroy the HL-WP in dishwashers, even with the batteries installed. 300g x 0.1g. AC adaptor is optional (available at additional cost).