We are offering glass linear encoder.glass linear encoder (ls series) provided by us has a special design having multiple layer braided net and stainless steel shade guards in the signal wires that make it water proof and resistant to interferences. specifications grating pitch20 µmresolution0.005 mm, 0.001 mm, 0.0005 mm (option)measuring length (ml)50 mm~3,000mmoutput signalttl square wave (std.) ; rs422 (option)accuracy±( 5 + l200 ) µm ; l: measuring length (mm)max. Response speed60 mmin (1 µm resolution)signal cable3.5 m for ml