The Endress Hauser RN221N-D1 is an active barrier transmitter designed for reliable signal isolation and protection in your instrumentation setup. It supports a wide voltage range, operating between 20 and 250 VAC or DC, and works with both 50 and 60 Hz frequencies. This model also offers an optional HART diagnostic capability, which allows for enhanced communication and troubleshooting of connected devices. Its compact design is suited for DIN rail mounting, making installation straightforward in control panels. Distributed by BSP Automation, this transmitter is a practical choice for maintaining signal integrity in industrial environments.