Rotary encoder potentiometer switch forcar dvd and player car camera 1 high quality 2 Passed ISO9001, ... ISO14001,ISO/TS16949 Rotary encoder potentiometer switch for car camera We produce rotary encoder, potentiometer and switch. ... equipment, Walkie talkie,DVD,GPS navigation,toys ,automotive accessories (car amplifiers) Volume Control ,interphone,sport equipment communication equipment, computer ...