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FYI: each APM main circuit board is enclosed in non-corrosive GE LexanŽ , which prevents electrical discharge with the circuit board and renders the mechanism more lightweight if dropped. Lexan is the material used for motorcycle helmets, NASCAR windshields, and bullet-proof bank teller "windows". See www.gelexan.com/gelexan/features.html. Zinc is available for the APM-E at an additional cost, but why would you want it? |