A low profile, sealed contact device, well suited for switching, and other keystroke data entry. With fully automatic Dome and LED placement equipment ENSEL is able to provide a full comprehensive line of custom membrane constructions: Flat non tactile switch Circuit layer Spacer layer Shorting pad Graphic overlay Tactile poly dome switch Circuit layer Spacer layer Embossed polydome shorting pad Spacer adhesive Embossed graphic overlay Embedded led switch Led circuit layer Led spacer layer Keypad circuit layer Dome spacer Stainless steel metal domes Dome retainer