The Crouzet Control 81512201 is a sophisticated position detector designed for use in industrial fluid power systems. It operates on the principle of monitoring a bleed at the input port of a relay. When a sensor detects a change in this bleed, the relay switches, indicating a change in position or condition. The connector features a push-in connection for semi-rigid tubing (NFE 49100) with a 4mm diameter. It is designed to withstand endurance at 6 bar operations and requires an actuation force of 0.8N at 6 bars. The device is supplied at industrial pressure and is suitable for applications requiring precise position detection and reliable switching.