Miniature Ultrasonic Distance Ranging Obstacle Avoidance Sensor (3m, RS485, IP67)

This miniature ultrasonic distance sensor provides reliable non-contact measurement and obstacle avoidance from 2cm up to 300cm over an RS485 interface. Featuring an IP67-rated enclosure and interference-resistant design, it is ideal for robotics builders, automation engineers, and makers needing robust environmental sensing.

Wide 2 to 300cm detection range

The sensor measures distances from as close as 2cm out to 300cm, delivering dependable short- to mid-range obstacle detection. Its compact footprint allows easy integration into tight mobile robotics chassis.

Industrial RS485 communication

Utilising an RS485 serial interface, the sensor supports stable data transmission over longer cable runs. This makes it well-suited for industrial automation setups and complex multi-device robotics architectures.

IP67 waterproof enclosure

The sealed IP67 casing protects internal electronics from water and dust ingress. This ensures dependable operation in demanding indoor and outdoor operating environments.

Rapid response and noise resistance

With a response time between 15ms and 750ms, the sensor enables prompt obstacle avoidance for moving platforms. Integrated interference resistance ensures accurate ranging even in noisy electrical and acoustic conditions.

Downloads & documentation

• Product wiki (DFRobot)