DFRobot URM09 is an ultrasonic sensor specifically designed for fast-ranging and obstacle avoidance application. Its measuring frequency can reach up to 50Hz. The sensor adopts built-in temperature compensation and I2C communication. There are three measurement ranges designed for programs to select: 150cm, 300cm, and 500cm. Please note that a shorter range will provide a shorter ranging cycle and lower sensitivity. You may need to set it according to your actual use. Besides, the sensor is equipped with on-board LDO, which can avoid performance attenuation within the power supply range.

• Supply Voltage: 3.3~5.5V DC
• Operating Current: 20mA
• Operating Temperature Range: -10℃～＋70℃
• Measurement Range: 2cm～500cm (can be set)
• Resolution: 1cm
• Accuracy: 1%
• Frequency: 50Hz Max
• Dimension: 47mm × 22 mm/1.85”× 0.87”

• Product wiki

• URM09 Ultrasonic Sensor(Gravity I²C)(V1.0) x1
• PH2.0-4P Connector x1