It is the first ultrasonic sensor to feature the vendor’s World-Beam standard housing for mounting and application flexibility. With its compact size, 50- to 500-mm sensing window, 15-millisecond response time and push-button Teach programming, the World-Beam QS18U Series ultrasonic sensor is well suited for a variety of applications in the packaging, materials handling, pulp and paper, semiconductor and pharmaceutical industries. Ultrasonic sensors are ideal for applications in which the sensing target is made of clear or transparent materials or the target surface color varies.