Digital IR Proximity Sensor (1-400cm)

The Digital IR Proximity Sensor detects objects at distances from 1 to 400 cm using a 940 nm laser emitter. It's the advanced version of the SEN0381, offering a longer sensing range and an onboard status indicator LED.

Detection distance is adjustable — hold the onboard button for 3 seconds, then set your desired range. The sensor automatically saves the configured distance. Digital signal output makes it easy to integrate with Arduino and DFRobot IO Expansion Shields.

Key Features

• Adjustable Range – Set detection distance from 1 to 400 cm via onboard button
• Laser Sensing – 940 nm laser with diffuse reflection detection
• IP67 Waterproof – Suitable for outdoor and harsh environments
• Digital Output – High/low level signal, compatible with Arduino
• Short Circuit Protection – Automatically disables output above 1 A
• Wide Voltage Range – 5–24 V DC power supply

Specifications

• Power Supply – DC 5–24 V
• Operating Current – 15 mA
• Load Current – 300 mA
• Detection Distance – Adjustable, 1–400 cm
• Detection Accuracy – ±4%
• Wavelength – 940 nm laser emitter
• Detection Angle – 35° (transmit), 25° (receive)
• Operating Temperature – −20 to 70 °C
• Storage Temperature – −20 to 85 °C
• Waterproof Rating – IP67
• Material – PC optical filter, PC-V0 fireproof housing

Ideal For

• Robot obstacle avoidance
• Smart home automation
• Security and intrusion detection
• Proximity-triggered control systems

Package Contents

• 1× Digital Laser Proximity Sensor (1–400 cm)

Resources

• Product Wiki