HC-SR04 Ultrasonic Range Measurement Module

HC-SR04 is a non-contact distance measurement module, it provides high accuracy and high resolution ultrasonic proximity detection and ranging in air.

This ultrasonic sensor detects objects from 2 cm to 4.5meters.

Specifications

• Input Power: 3.3~5V DC
• Effectual Angle: < 15 degrees
• Ranging Distance: 2cm to 450 cm
• Resolution: 1 cm
• Ultrasonic Frequency: 40kHz