Ultrasonic Proximity Sensor

High quality ultrasonic proximity sensor is designed for detecting objects and measuring distance using high-frequency sound waves. The SUCH ultrasonic proximity switch provides 30–300mm, 50–500mm, or 60–1000mm 3 selectable detection ranges and supports 1 NPN and 1 PNP switch output, NO/NC adjustable, as well as 0–10V, 4–20mA or 0–10V + 4–20mA analog output, suitable for a variety of automated detection scenarios. Its IP67 protection rating ensures stable operation even in harsh environments, making it suitable for detecting targets made of various materials.

Working Principle

The proximity sensor emits ultrasonic pulses and calculates distance based on the time it takes for the echo to return. This principle ensures reliable performance even in dusty, humid, reflective, or transparent conditions where optical sensors fail.

Types

• M18 NPN/PNP Switching Ultrasonic Proximity Sensor (NO/NC): Ideal for presence/absence detection.
• M18 Analog Output Ultrasonic Proximity Sensor (0–10V/4–20mA): Suitable for continuous distance and level measurement.

Applications

Ultrasonic proximity sensors are widely used for liquid level monitoring, bulk material detection, conveyor and packaging automation, and object positioning in robotics. They serve industries such as manufacturing, logistics, food processing, chemicals, and agriculture.