# Ultrasonic Distance Sensor - HC-SR04

**Type:** Product page · **SKU:** SEN-15569 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/ultrasonic-distance-sensor-hc-sr04.html ([markdown](https://core-electronics.com.au/ultrasonic-distance-sensor-hc-sr04.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: CE05112.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/CE05112

## Description

This is the HC-SR04 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit.

There are only four pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground). You will find this sensor very easy to set up and use for your next range-finding project!

This sensor has additional control circuitry that can prevent inconsistent "bouncy" data depending on the application.

**Features**

- Operating Voltage: 5V DC
- Operating Current: 15mA
- Measure Angle: 15°
- Ranging Distance: 2cm - 4m

**Documents**

- [Datasheet](https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf)
- Example Tutorial
- [GitHub](https://github.com/sparkfun/HC-SR04_UltrasonicSensor)