Precision Ultrasonic Sensor 4 pin

Ultrasonic ranging module.

• Trigger Pin Format: 10 uS digital pulse
• Sound Frequency: 40 kHz
• Echo Pin Output: 0-Vcc
• Echo Pin Format: output is DIGITAL and directly proportional with range.
• Measurement Range: 2cm to ~4.5m
• Measurement Resolution: 0.3cm
• Measurement Angle: up to 15 deg
• Measurement Rate: 40 Hz
• Supply Voltage: 4.5V to 5.5V
• Supply Current: 10 to 40mA
• Connector: standard 4-pin male connector which can plug directly into breadboards.

Here is a link to an updated GitHub repository 

It will use the serial monitor in Sketch to output the data obtained from a ping..