Membrane Keyboard

Membrane Keyboard is known as membrane keypad and membrane switch. Membrane Keyboard are mainly used as control keyboard for medical equipment, which can performance well in high temperature environment.
Membrane keyboard, button / keys have good visual, audible, and tactile feedback, because metal domes are added to membrane keyboard, which provide the upper circuit layer.

Membrane Keyboard - Main Properties

PC /PET as overlay (control panel) 
Flat keys or tactile type 
Embossed button with good tactile feel 
Pre-assemble with or without metal domes 
Water-resistant, dust-proof, gas-proof and scratch-resistant 
Long life cycle.