Distance sensor ultrasound HC-SR04 2 - 400cm

Ultra sonic distance sensor with transmitter and receiver mounted on a single board. To initiate a measurement, a short pulse (at least 10uS) is sent to the Trig-pin. The sensor will transmit 8 short pulses, calculate the time for the sound to bounce back and then sets the output high with a pulse length corresponding to the distance. A library for Arduino is available for download.

* Supply voltage: 5VDC
* Current consumption: 2mA
* Sensing angle: 15°
* Sensing range: 2 - 400cm
* Resolution: 3mm