Check the listing for details. HEIDENHAIN 47R OPTICAL HEAD 401R LINEAR ENCODER 10' CABLE SUPRADUR TTLx5 ML 70mm. Condition: Used. Listed at 39.99 USD. Genuine us military / govt surplusHeidenhainLif 401R / 47r linear encoder UNIT ITEM: HEIDENHAIN LINEAR ENCODER LOTINCLUDES: LIF 47R OPTICAL ENCODER HEAD, w/ 10’ CABLE LIF 401R LINEAR ENCODER MOUNTE ON STEEL BASE SKF STEEL GUIDE RAILSUNIT MARKINGS: LIF 47R: 519 259-04 26 257 297 K TTLx5 90 500,00 kHz OT LIF 401R: P8.000 G8 ML 70 mm ID 373 021-07 SUPRADUR H12 SFK GUIDES: LWR 6250CONDITION: USED, GOOD to VERY GOOD WORKING CONDITION PLUG END FINISH IS BUBBLING BUT IT IS SUPERFICIAL, MINOR CORROSION ON LIF 401R STEEL BASE PULLED FROM FULLY FUNCTIONAL UNIT – SEE PHOTOS OF ACTUALABOUT HEIDENHAIN ENCODERS:Exposed Linear Encoders from HEIDENHAIN are Optimized for use on Fast, Precise machines used in the Semiconductor Industry and in Automation Technology. In spite of the exposed mechanical design, HEIDENHAIN Encoders are highly tolerant to contamination, provide years of long-term stability, and are fast and simple to mount.