Feature:1. Efficient Ranging: From 3cm to 450cm, the ultrasonic distance sensor enables accurate ranging that will not be influenced by environment.2. Has Stable Output: Stable circuit design together with built in intelligent algorithm will largely improve the stability of data output.3. Waterproof Design: IP67 waterproof design suits for various working environments in damp and harsh places, also has temperature compensation.4. Saving the Energy: Thanks to the lower power consumption design, the UART controlled ultrasonic ranging sensor ensures reliable performance.5. Wider Application: Allows for wide application in robot obstacle avoidance, intelligent trash can detection, parking space detection, etc.Specification:Item Type: Ultrasonic Distance SensorMeasurement Accuracy: (1+S x 0.3%). Working Voltage: DC 3.3V-5VAverage Current: 8mATemperature Compensation: YesRange: Approx. 3 ~ 450cm / 1.18 ~ 177.17inOutput Mode: UART ControlledApplication Scenarios: For robot obstacle avoidance, intelligent trash can detection, parking space detection, intelligent home, etc. .Package List:1 xUltrasonic Distance Sensor