The Endress Hauser FTL31-AA4U3BAXDJ is a vibration limit switch designed specifically for monitoring liquids. This device operates within a 10-30 VDC range and features a 3-wire PNP output, making it suitable for reliable signal transmission. Its compact sensor includes a short tube constructed from 316L stainless steel with a smooth surface finish, ensuring durability and resistance to corrosion. The switch is equipped with an EN10226 R1 threaded connection and comes with a valve plug conforming to ISO 4400 standards, housed in an enclosure rated IP65/NEMA Type 4X for protection against dust and water ingress in non-hazardous environments. This model replaces the earlier FTL260-0220 and is available through BSP Automation, providing a dependable solution for liquid level control applications.