... waterproof encoder 1.Passed ISO9001,ISO14001,ISO/TS16949 2.Rotational life : 100000 cycles 3. Brand:PANASONIC and ALPS ... Rotary Potentiometers use for Sound Instruments, car amplifier, DVD player and GPS navigation full sealingWe produce rotary encoder ... , potentiometer and switch.rotary encoder,potentiometer and switch for musical instruments ...