... .outpu:push-pull, TTL, open collector and so on CESI-S 500 seriesFeatures*compact size, rugged construction, easy to install*economiccost, andcost ... .6-1.2mm, rope maximum load: 16KGDegree of protectionIP65/IP54weight450gspeed1m/s spring return sensor spring inside sensor spring pull encoder If ... no hesitate to contact with us! spring return sensor CESI-S 500 series range 500mm,spring inside sensor