Autonics PRD18-14DN Proximity Sensor
The Autonics PRD18-14DN Proximity Sensor features a 14mm sensing distance with NPN Normally Open output and a sturdy M18 sensing side diameter that ensures accurate detection in automation systems. Manufactured by Autonics, this high-performance Autonics Proximity Sensor is part of the reliable Autonics PRD Series designed for durability and consistent operation in industrial environments. It runs on DC 3-wire type 12–24VDC power, provides IP67 protection structure, and supports a 200Hz response frequency. The sensor detects 40×40×1mm (iron) standard targets with maximum 10% hysteresis, offering stable, long-term performance across demanding automation applications.

| Brand | Autonics |
| Product Type | Proximity Sensor |
| Model Number | PRD18-14DN |
Autonics PRD18-14DN Proximity Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing side diameter | M18 |
| Sensing distance | 14mm |
| Hysteresis(distance) | Max. 10% of sensing distance |
| Standard sensing target | 40×40×1mm(iron) |
| Current specification | Current consumption: Max. 10mA |
| Control output | NPN Normally Open |
| Wire type and power | DC 3-wire type 12-24VDC @(=) |
| Installation | Non-shield(non-flush) |
| Cable Standard/material | Standard cable |
| Body length | Standard type |
| Residual voltage | Max. 1.5V |
| Environment_Ambient temperature | -25 to 70℃, storage: -30 to 80℃ |
| Environment_Ambient humidity | 35 to 95% RH, storage: 35 to 95% RH |
| Protection structure | IP67 |
| Material | Brass(nickel plated) |
| Response frequency | 200Hz |
| Weight | ≈ 97g (≈ 115g) |
The Autonics PRD18-14DN is a non-flush type Long-Distance Inductive Sensor with a sensing range of 14mm, tailored for detecting standard iron targets measuring 40×40×1mm. Built with a durable nickel-plated M18 brass housing, this sensor offers robust performance and long service life. It operates on a DC 3-wire system with an input range of 12–24VDC and delivers NPN Normally Open output compatible with most industrial control systems. The sensor supports low current draw at just 10mA and ensures a residual voltage of 1.5V, helping maintain signal accuracy in real-world conditions.
Rated with IP67 protection, the PRD18-14DN performs reliably in dusty, oily, and humid environments, with a wide operating temperature from –25°C to 70°C. Its response frequency of 200Hz ensures efficient detection for moderate-speed applications. The non-shielded design allows longer sensing range without interference from surrounding metals. Designed with standard cable termination and a compact cylindrical body, this sensor is easy to install across OEM, retrofit, and maintenance projects. Engineers trust Autonics for consistent, interference-free, and maintenance-friendly sensors built to perform under tough operating conditions.
Find similar sensors in our Autonics Proximity Sensors section or visit the full Autonics brand page for more automation products.
Engineers rely on Autonics PRD18-14DN to reduce equipment wear and enable contactless object detection that’s fast, repeatable, and easy to maintain. Its robust body, wide detection field, and clean signal performance make it an excellent fit for automation projects demanding precision and uptime.




