The Origin Instruments Corporation Sip/Puff Switch is a head mounted accessory used to actuate a two position switch by a simple sip or puff. It consists of a head frame with attached mouth tube and a switch box connected to the head frame by a second plastic tube.
Sips and puffs are converted to switch closures inside the Switch Box. These switch events are made available on two connectors labeled “Sip” and “Puff.”
The Sip/Puff Switch is ideal for accessing electronic devices such as the Headmouse