E18-D80NK Photoelectric Proximity Sensor 5V – 3 to 80cm
250.00 EGP Original price was: 250.00 EGP.220.00 EGPCurrent price is: 220.00 EGP.
The E18-D80NK Photoelectric Sensor is a 5V infrared proximity switch with an adjustable detection range of approximately 3 to 80cm. It features a digital NPN output, built-in detection indicator and threaded cylindrical housing for easy mounting.
Ideal for obstacle detection, object counting, robotics and automation. Detection distance varies according to the object’s colour, surface and reflectivity.
E18-D80NK Photoelectric Sensor 5V
The E18-D80NK Photoelectric Sensor is an adjustable infrared proximity switch designed for non-contact object detection. It combines an infrared transmitter, receiver and control circuit inside a compact threaded cylindrical housing.
The sensor emits infrared light toward the target. When an object enters the selected detection range, part of the light reflects toward the internal receiver. The sensor then changes its digital output state. Therefore, it can be connected to Arduino boards, microcontrollers, PLC interfaces and digital control circuits.
Its detection range can be adjusted from approximately 3 to 80cm using the potentiometer located at the rear. However, the final sensing distance depends on the object’s colour, surface, size, angle and infrared reflectivity.
Main Features
- Model: E18-D80NK
- Infrared photoelectric proximity sensor
- Adjustable detection range from approximately 3 to 80cm
- 5V DC operating voltage
- Digital NPN output
- Active-LOW detection signal
- Built-in detection-status LED
- Rear adjustment potentiometer
- Non-contact object detection
- Diffuse reflective operating principle
- Threaded cylindrical housing for easy installation
- Supplied with mounting nuts
- Suitable for robotics and automation projects
- Fast response for object-detection applications
Technical Specifications
| Specification | Value |
|---|---|
| Model | E18-D80NK |
| Sensor Type | Infrared photoelectric proximity switch |
| Detection Method | Diffuse reflective |
| Operating Voltage | 5V DC |
| Detection Range | Approximately 3–80cm, adjustable |
| Output Type | NPN digital output |
| Output Behaviour | Active LOW when an object is detected |
| Typical Response Time | Less than 2ms |
| Housing Diameter | Approximately 17–18mm |
| Housing Length | Approximately 45mm |
| Typical Cable Length | Approximately 45cm |
| Operating Temperature | Approximately −25°C to +55°C |
| Detection Indicator | Built-in LED |
| Number of Wires | 3 |
E18-D80NK Wiring
The most common wire configuration is:
| Wire Colour | Function | Connection |
|---|---|---|
| Brown | Positive supply | +5V DC |
| Blue | Ground | GND |
| Black | Digital output | Controller digital input |
Some batches may use red for VCC, green for GND and yellow for output. Therefore, always check the labels or wiring information supplied with the actual sensor before connecting power.
The NPN output normally remains HIGH through a pull-up connection. When an object is detected, the output transistor pulls the signal LOW. A suitable pull-up resistor, commonly 10kΩ, may be required depending on the connected controller.
Common Applications
The E18-D80NK Photoelectric Sensor is suitable for:
- Robot obstacle avoidance
- Object counting systems
- Conveyor-belt detection
- Automatic doors and dispensers
- Packaging and sorting machines
- Production-line automation
- Position and limit detection
- Parking-assistance projects
- Arduino and microcontroller projects
- Interactive electronic installations
Important Detection Notes
This product operates as an adjustable proximity switch. It indicates whether an object is inside the configured range, but it does not provide its exact distance like an ultrasonic or Time-of-Flight sensor.
Detection performance may change with dark, shiny, transparent or angled surfaces. For this reason, adjust and test the E18-D80NK Photoelectric Sensor using the actual object and environment of the final application.


