HC-SR04 Ultrasonic Sensor Module Ultra sonic HCSR04

The HC-SR04 Ultrasonic Sensor Module is a non-contact distance measuring sensor that uses 40kHz ultrasonic sound waves to measure distances from 2cm to 400cm with an accuracy of up to ±3mm. It is widely used in robotics, obstacle avoidance, automation, liquid level monitoring, and Arduino-based projects.

Features

• Non-contact ultrasonic distance measurement
• Measuring range: 2cm to 400cm
• High accuracy up to ±3mm
• Operating frequency: 40kHz
• 5V operating voltage
• Fast response time
• 4-pin TTL interface

Specifications

• Model: HC-SR04
• Sensor Type: Ultrasonic Distance Sensor
• Operating Voltage: 5V DC
• Operating Current: 15mA (Typical)
• Operating Frequency: 40kHz
• Measuring Range: 2cm – 400cm
• Measurement Accuracy: ±3mm