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https://www.sick.com/DGS80_90 DGS80 and DGS90 are incremental encoders with large hollow shaft diameters of up to 42 mm (DGS80) and 65 mm (DGS90). The devices can be used in countless industrial automation applications. Combined with the many facilities for connecting the encoder, its supply voltage range of 5 V to 30 V makes integration into many control systems easier. The DGS80 and DGS90 are also characterized by their quick and easy installation: This is made possible by their compact design, the clamping ring for quick installation, the universal stator couplings, and the large selection of collets that simplify installation on shafts of different sizes.