A general-purpose switch. This proximity sensor is small enough to use as a head switch and sensitive enough to activate through a padded headrest or lap tray.
A switch that works best when the eye-blink is the only movement the user is able to perform. The sensor is capable of discriminating between random eye-blinks and a purposeful, controlled eye-blink.
Switch that provides a range of activation distances. Proximity sensors can be activated when a body part comes into its range without actually touching the switch.
A low-profile mechanical switch that requires a few grams of pressure to activate. With a click sound to signal activation, it sits on a slightly angled platform for easier access.
A multi-level communication device that can read what overlay is in the device by detecting the hole pattern that is punched on the overlay. It includes 32 messages per level.