The Siemens 544-811A is a versatile room relative humidity sensor designed to provide accurate environmental monitoring. It offers selectable output signals, allowing you to choose between 0-10 VDC or 4-20 mA, making it adaptable to different control systems. This sensor measures relative humidity from 0 to 100%, along with temperature, which is also available as a 4-20 mA or 0-10 V output. The connection is made via a terminal block for straightforward installation. This reliable sensor is supplied by BSP Automation, ensuring you have access to quality components for your automation needs.