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Construction includes graphic overlay, top spacer, optional dome/top
membrane layer, bottom spacer, bottom membrane and an optional subpanel.
Shielding may be incorporated.
Backlighting options include conventional light sources, electroluminescent
or fiber-optic.
Typical Membrane Specifications
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Tactile response
Sealed
Easy to clean
Chemical and abrasion resistant
Low profile
Low cost (depending on # of switches)
Medium to long life (depending on type of dome used)
Simple field replacement and on-site servicing
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Limited backlighting options
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