About this item

The E18‑D80NK Adjustable Infrared Proximity Sensor is a compact, diffuse‑reflective photoelectric switch combining an infrared emitter and receiver in a single housing. It provides an easily adjustable detection range from 3 cm to 80 cm, fine‑tuned using the rear-mounted potentiometer. Operating on a 5 VDC supply, it draws roughly 100–300 mA (depending on source), and outputs a digital signal via an open‑collector NPN output (active LOW when an object is detected), ideal for microcontroller interfacing. A visible indicator LED mimics the output state for quick diagnostics. The sensor includes an approximately 1 meter cable and a compact plastic probe with a narrow beam angle (~≤15°). It tolerates ambient temperatures from around –25 °C to +70 °C, and features reverse‑polarity protection. Lightweight and affordable, it’s excellent for applications like obstacle avoidance in robotics, object detection on conveyor systems, interactive installations, and automated counters. Its ease-of-use, reliability, and adjustability make the E18‑D80NK an ideal choice for prototyping and embedded projects that require precise, configurable proximity detection.