The 81921707 is a pneumatic position detector designed for mechanical position sensing in automated systems. This all-metal, normally closed (NC) detector operates with a pressure range of 0.1 to 8 bar and delivers a flow rate of 200 Nl/min at 6 bars, requiring an actuation force of 18 N. It is equipped with a lever and a one-way trip plastic roller for actuation and is built for durability with a mechanical life of at least 10 million operations within a temperature range of -5°C to +50°C. Its robust, 100% pneumatic design makes it suitable for reliable position detection in various industrial automation and machinery applications.