E18-D80NK Infrared Proximity Sensor - Adjustable IR Obstacle Avoidance Sensor for Arduino

E18-D80NK Infrared Proximity Sensor - Adjustable Range IR Obstacle Avoidance Sensor

The E18-D80NK is a widely used diffuse-reflective infrared proximity sensor in a rugged M18 cylindrical threaded body. With a built-in IR emitter and receiver, adjustable detection range (3cm to 80cm), and NPN normally-open digital output, it is the go-to sensor for obstacle avoidance, object detection, and proximity switching in Arduino, ESP32, and industrial automation projects.

Key Features

• Adjustable detection range: 3cm to 80cm - set via rear potentiometer
• Diffuse-reflective sensing - detects objects without a separate reflector
• NPN normally-open (NO) digital output - directly compatible with Arduino and microcontroller input pins
• M18 threaded cylindrical body - easy panel or bracket mounting with included nut
• 3-wire cable output: Brown (VCC), Blue (GND), Black (Signal OUT)
• Built-in IR emitter and receiver in a single sealed housing
• Robust yellow ABS / metal body - suitable for indoor and light industrial use
• 5V - 12V DC operating voltage - compatible with Arduino 5V and 12V systems

Specifications

• Model: E18-D80NK
• Sensing Type: Diffuse-reflective infrared (IR)
• Detection Range: 3cm - 80cm (adjustable)
• Output Type: NPN, Normally Open (NO)
• Supply Voltage: 5V - 12V DC
• Output Current: Up to 100mA
• Cable: 3-wire, ~45cm (Brown: VCC, Blue: GND, Black: OUT)
• Body: M18 threaded cylindrical (yellow)
• Adjustment: Rear potentiometer for range setting

Wire Connection Guide

• Brown: VCC (5V - 12V DC positive)
• Blue: GND (negative)
• Black: Signal output (NPN open collector - connect to microcontroller input with pull-up resistor)

Perfect For

• Arduino and ESP32 Obstacle Avoidance Robots
• Object Detection and Proximity Sensing
• Conveyor Belt Object Counting and Detection
• Automatic Door and Gate Trigger Sensors
• Line Following Robot Side Obstacle Detection
• Industrial Proximity Switch Replacement

Order now and add reliable adjustable-range IR proximity sensing to your Arduino robotics or automation project.