touch point
1.The Laryngoscope Lense is equipped with a 3V power supply. The switch controlled by a spring touch-point requires nothing about the assorted lens handle power supply.
4.We use touch screens everywhere: tourist kiosks, automatic teller machines, point-of-sale terminals, industrial controls.
7.And then a suit of tension control system was developed,which takes S7-300 PLC of SIEMENS company as controller,takes TP27 touch panel as human machine interface(HMI),and takes multi-point interface as communication protocol.

