Lot of 90 New ALPS EC16 series rotary encoder. 

Similar also to Bourns PEC16-4-2-F-S-0024 but metal shaft

A Rotary Encoder can measure rotation of a knob - uses include: volume control, dimmer, and level control - with the right associated circuitry. 

Features include:

  • PC Mount solder pins, rear facing
  • Threaded Bushing
  • 16mm wide x 18mm body
  • 24 Detents 
  • 6mm dia metal shaft with flat - 20mm long
  • Momentary NO Pushbutton built in!!!
  • 24 pulses per revolution
  • Continuous Rotation

    No mounting hardware.