Available. The Heidenhain 511395-01, also known as the ST 1277, is an incremental length gauge designed for precise measurement applications in industrial automation. This model features a 12 mm measuring length and utilizes a ball-bush guide system, ensuring high accuracy and durability. The plunger actuation is extended with compressed air, providing reliable and consistent performance. The device offers a 1.0 µm accuracy grade, making it suitable for applications requiring high precision. It is equipped with a 15-pin male D-sub connector for electrical connection, with TTL square-wave output signals and 10-fold interpolation, facilitating seamless integration into various systems. The device operates on a 5V ±10% power supply and has a protection rating of IP64, ensuring its resilience in industrial environments. The operating temperature range is +10/+40 °C, allowing for versatile deployment in different settings. This length gauge is ideal for use in production metrology, multipoint inspection stations, and as a position measuring device, offering robust performance and reliability.