The E6E8-2.7C5-12B15 is an SMD (Surface-mount Device) Rotary Encoder with ROHS (Restriction of Hazardous Substances) certification. It is manufactured by G-Switch and has an integrated Hall effect sensor with an electromechanical output and 12 circuits with a dual output resolution of 4 or 12 pulses per revolution and a rotational angle of 12 degrees per pulse. The operating temperature ranges from -25 to +85 degrees Celcius and the cylindrical shaft dimension is 2.7mmx5mm. It has an absolute linearity of +/-1% and is reverse polarity protected.