Types of Switches

• Pressure switches require pressure on the surface activate.
• Lever switches require pressure on the end of a lever.
• Touch switches are activated by touching a projection in any direction.
• Joysticks can be moved in different directions to provide control of wheelchairs or computers or set up as a switch for four devices.
• Sip-n-puff switches are activated by pressure changes by soft and hard sips and puffs into a mouth tube.
• The SCATIR (Self-Calibrating Auditory Tone Infrared) switch is a multipurpose versatile switch that can be activated by eye blink, or eyebrow, finger, head or facial muscle movement.
• Muscle twitch switches are activated by muscular movement perceived on the skin.
• An eye blink switch is activated by each eye blink or double eye blink and can control communication devices, toys or computers.
• Proximity switches operate through electromagnetic force received from proximity to a body part.
• String switchs are activated by pulling and releasing a three-inch loop of string.
• Tongue switches use a dental type plate positioned on the roof of the mouth that has variety of pressure sensitive spots activated by the tongue.
• Directional switches have five pressure spots that operate as separate switches to control different devices or for devices that require more than one switch.
• Mini-Joystick with Pad or Joystick with Pad switchs are similar to directional switches because they can be used to control any device that requires five single switches or can be adapted to control up to five devices operated with a single switch.
• Rocker switches are a type of lever switch generally with a left and right side usually allowing the activation of two different switches.
• Squeeze switches are activated by gripping with the hand onto a cylindrical or other type of handle.

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