Ultrasonic Sensor 2 - 400cm
Its stable performance and high ranging accuracy make it a popular module in electronic market. Compared to the Sharp IR ranging module, HC-SR04 is more inexpensive than it, but it has the same ranging accuracy and longer ranging distance.
Power supply 5V DC
Quiescent current <2mA
Effectual angle <15°
Ranging distance 2cm - 400 cm
Resolution 0.3 cm