The SICK UM18-212161101 ultrasonic distance sensor delivers reliable object detection and short-range measurement in demanding industrial automation tasks. In a compact M18 cylindrical format, it is a proven choice for machine builders and OEMs who need stable performance on conveyor systems, packaging lines, robotics and level monitoring, even on reflective, dark or transparent surfaces.

Engineered for consistency, this UM18 variant offers a working range of 65 to 350 mm with a 600 mm limit, a fast 64 ms response time and one PNP digital switching output for straightforward integration with PLCs. The 400 kHz ultrasonic transducer ensures dependable measurement independent of color and material, while teach-in support and selectable operating modes (distance to object, switching window, object before background) simplify commissioning. A robust PBT housing with IP65/IP67 protection and an M12 4-pin plug connector supports quick installation, and status LEDs provide at-a-glance diagnostics for efficient setup and maintenance.

Designed to minimize downtime with durable construction and standard M18 mounting, this ultrasonic sensor helps streamline projects across maintenance and new builds alike, and with SICK quality backed by a 1-year warranty, it provides confidence in long-term operation and lifecycle costs.

• Brand: SICK
• Series: UM18
• Model: UM18-212161101
• Output type: 1 x PNP digital
• Sensing range: 65 to 350 mm (600 mm limit)
• Response time: 64 ms
• Protection rating: IP65/IP67
• Connection type: M12, 4-pin