E18-D80NK IR Proximity Sensor Switch 3-80cm NPN Output
E18-D80NK IR Proximity Sensor Switch
The E18-D80NK is a reflective infrared proximity sensor that detects objects without physical contact. It combines an IR LED and a phototransistor inside a robust M18 threaded housing, with a detection range adjustable from 3 to 80 cm. Its NPN open-collector output delivers a clean digital signal, ideal for obstacle sensing, counting, and automation in robotics and DIY projects.
Key Specifications
| Specification | Value |
|---|---|
| Operating Voltage | 5V DC |
| Detection Range | 3 – 80 cm (adjustable) |
| Output Type | NPN open collector (low when object detected) |
| Current Consumption | <25 mA |
| Response Time | <2 ms |
| Housing | M18 (18 mm diameter, threaded) |
What You Can Build With This
- Obstacle-avoidance robot that reverses or turns when a wall is detected
- Automatic door opener triggered by a person’s approach
- Object counter on a conveyor belt for packaging or sorting
- Line-following robot using the sensor to track edges or markers
Compatibility
Works directly with 5V microcontrollers such as Arduino Uno, Nano, ESP8266, and ESP32. The NPN output pulls low and can connect to any digital input pin; a 10 kΩ external pull-up resistor to 5V is recommended for reliable logic levels. Pair it with motor drivers or relays for controlling larger loads.
Wiring Notes
Wire brown to VCC (5V), blue to GND, and black to your microcontroller’s digital input. Install a 10 kΩ pull-up resistor from the signal line to 5V—this ensures the output stays HIGH until an object is detected, then drops LOW. The sensor draws under 25 mA and can sink up to 100 mA on its output, but it should not directly drive motors or inductive loads.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, the sensor runs at 5V and outputs a digital signal. Connect the black wire to any digital pin (e.g., D2) with a 10 kΩ pull-up resistor to 5V. No level shifting is needed.
Can it detect transparent or shiny objects?
Infrared light can pass through clear glass or highly reflective surfaces, so detection may be unreliable. For transparent objects, consider an ultrasonic sensor or a photoelectric through-beam sensor.
How do I adjust the detection distance?
Turn the small potentiometer on the sensor’s rear clockwise to increase range (up to ~80 cm) or counter‑clockwise to decrease it (down to ~3 cm). Test with your target object for optimal setting.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items