Assertion: membrane keyboard | /r/ObjectUse | used in access control systems
Facets:
value: for buildings
type: TRANSITIVE-OBJECT
value: for restricted areas
type: PURPOSE
Source sentences:
text: Smaller, specialised membrane keyboards, typically numeric-and-a-few-control-keys only, have been used in access control systems (for buildings and restricted areas), simple handheld calculators, domestic remote control keypads, microwave ovens, and other similar devices where the amount of typing is relatively small or infrequent, such as cell phones.