This is a 4-sensor-in-1 module for distance detecting by ultrasonic technology, it’s composed of 4 sealed waterproof sensors which can detect object distance from 4 different directions. Due to its waterproof and dustproof performance, it can be used at some humid or hostile environment.

The ultrasonic module can be widely used for object approaching like obstacle detecting for automated guided vehicle, smart dustbin, material detecting, automatic controlling, etc.