The SK Series Cable Extension Transducer offer IP67 protection. there are four different string post in this series; SKJ - offers CANBus output signal for simple integration. SK1 - offers voltage divider output signals and a stroke range of 10.2 meters. SK6 - offers stroke ranges to 10.2 meters SKH - offers CANOpen output signal and linear position to 10.2m SKD - offers 0 10 VDC, 4 20 mA output The individual data sheets for each part are available for download by clicking the links below: SKD SK1 SK6 SKH SKJ