The EM14A0D-C24-L064S is a 14mm Rotary Optical Encoder with Sn-plated axial multi-purpose PC pins terminals. The rotary optical encoder has Ø1/4-inch flatted end shaft, black anodized brass, hex/nickel-plated brass hex nut and nickel-plated spring steel, internal tooth lockwasher. The rotary optical encoder is RECOMMENDED for human/machine interface applications (HMI). Operating temperature range is from -40 to 70°C.