The UA30CAD35PGTI is a diffuse ultrasonic sensor designed for distance, level, and diameter measurement applications. It features a cylindrical M30 PBT housing with a sensing range of 250–3500 mm and resolution as low as 2.0 mm, delivering linearity error of 0.5% and repeatability of 0.2%. The sensor provides dual outputs: a 4–20 mA analogue output and a PNP digital switching output (configurable as NO or NC), with a beam angle of ±6° and operating voltage of 12–30 VDC. Built-in microprocessor control and digital filtering provide immunity to electromagnetic interference, while comprehensive protection against short-circuit, reverse polarity, and overvoltage ensures robust operation in harsh environments. The IP67/Nema 4X rated housing and optional M12 connector or 2 m cable make it suitable for industrial automation, process control, and sensor-based measurement systems.