Surface acoustic wave touch screen is composed of glass, acoustic wave generator, reflector and acoustic wave receiver, in which the acoustic wave generator can send a kind of high-frequency acoustic wave all over the screen surface, when the finger touches the screen, the acoustic wave on the contact point is blocked, and thus the coordinate position is determined. Surface acoustic wave touch screen is not affected by temperature, humidity and other environmental influences, very high resolution, excellent scratch resistance, long life (more than 50 million times without failure), high light transmission rate (more than 92%), can maintain a clear and transparent image quality.

Obtouch ELo series is specifically customized to be compatible with ELO’s sonic screens, as well as with elo’s control cards. Currently the only sizes that fit are 15″ 17″ 19″ 21.5″