The AR904.B/RS485 is an electronic part manufactured by Apar, a leader in process analogue calibrators. It is an on-panel module with a 0÷50°C temperature range and 18÷265VAC voltage range. This particular module is designed for controlling process conditions, such as pressure, level, temperature, and flow. It has a wide range of capabilities, from low to high level signal conditioning abilities, and can be configured for digital inputs or outputs. Additionally, its high-quality construction ensures long-term reliability and durability. The AR904.B/RS485 is ideal for use in a variety of industrial systems, providing a reliable and cost-effective solution to process calibration needs.