During technical comparisons, PR18-5DN appears alongside Autonics Photoelectric Sensor, Contrinex Proximity Sensor and Autonics Tcn4 Series so engineers assess signal types, ingress protection, and ambient tolerances accurately.
Autonics PR18-5DN Proximity Sensor
The Autonics PR18-5DN Proximity Sensor offers a 5mm sensing distance with NPN Normally Open output and a sturdy M18 sensing side diameter for precise metal detection. Manufactured by Autonics, this proximity sensor from the PR Series ensures stable operation with hysteresis max. 10 of sensing distance and a standard sensing target 18Γ18Γ1mm (iron). It operates on a DC 3-wire type 12β24VDC power supply, supports a 500Hz response frequency, and offers reliable IP67 protection for harsh industrial environments.

| Brand | Autonics |
| Product Type | Proximity Sensor |
| Model Number | PR18-5DN |
Autonics PR18-5DN Proximity Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Brand | Autonics |
| Sensing side diameter | M18 |
| Sensing distance | 5mm |
| Hysteresis(distance) | Max. 10% of sensing distance |
| Standard sensing target | 18Γ18Γ1mm(iron) |
| Current specification | Current consumption: Max. 10mA |
| Control output | NPN Normally Open |
| Wire type and power | DC 3-wire type 12-24VDC @(=) |
| Installation | Flush |
| Cable Standard/material | Standard cable |
| Body length | Standard type |
| Residual voltage | Max. 1.5V |
| Environment_Ambient temperature | -25 to 70β, storage: -30 to 80β |
| Environment_Ambient humidity | 35 to 95% RH, storage: 35 to 95% RH |
| Protection structure | IP67(IEC standard) |
| Material | Case/Nut: Nikel plated Brass, (connector case of DIA. of sensing side Γ 8 mm: SUS303),washer: Nikel plated Iron, sensing side: polybutylene terephthalate,standard cable (black): polyvinyl chloride (PVC),oil resistant cable (gray): oil resistant polyvinyl chloride (PVC) |
| Response frequency | 500Hz |
| Weight | Approx. 122g(approx. 110g) |
The Autonics PR18-5DN Proximity Sensor from the trusted PR Series is a DC 3-wire M18 inductive proximity sensor ideal for contactless metal detection in industrial automation. It operates on a 12β24 VDC power supply with an NPN Normally Open output, providing a 5 mm sensing distance and 500 Hz response frequency. Featuring an IP67 protection structure and nickel-plated brass housing, the Autonics PR18-5DN Proximity Sensor delivers stable operation in harsh environments with dust, oil, or vibration. It ensures precision and reliability across multiple automation applications.
In industrial automation systems, the Autonics PR18-5DN Proximity Sensor is widely used for object detection, position control, and metal sensing in assembly lines, robotic systems, packaging equipment, and conveyors. Its flush mounting design enables installation in compact setups while maintaining stable detection near metal surfaces. The 12β24 VDC power supply and NPN Normally Open output make it ideal for integration with PLCs, controllers, and control panels. Resistant to moisture and oil, the Autonics PR18-5DN Proximity Sensor ensures long-lasting accuracy, helping machine builders and maintenance engineers achieve reliable automation performance in demanding industrial conditions.
Autonics Corporation, a globally recognized name in industrial automation solutions, manufactures the PR18-5DN Proximity Sensor under rigorous ISO-certified standards. Known for precision, durability, and consistency, Autonics proximity sensors are trusted by OEMs and automation professionals across India. Each sensor undergoes stringent performance and endurance testing to ensure accuracy and environmental reliability. The PR Series embodies Autonicsβ engineering excellence, delivering dependable performance for long operational life. Supported by Autonicsβ global service network, the PR18-5DN Proximity Sensor stands out as a proven solution for consistent metal detection in challenging industrial environments.
Within the Autonics PR Series, the PR18-5DN represents the NPN Type, Normally Open configuration designed for control systems that activate outputs when metal targets are detected. For setups requiring reverse logic operation, the compatible variant is the PR18-5DN2, which provides a Normally Closed output while maintaining the same 5 mm sensing distance, 12β24 VDC power range, and IP67-rated construction. Both sensors feature identical M18 flush design and high response speed. The PR18-5DN remains the preferred choice for Normally Open NPN control systems within industrial automation setups.
The Autonics PR18-5DN Proximity Sensor offers 5 mm sensing range, 12β24 VDC operation, and IP67-rated protection for high-performance metal detection in industrial automation. With its NPN Normally Open output and flush M18 design, it delivers accuracy and durability in machine tools and conveyors. Backed by Autonicsβ proven engineering reliability and worldwide support, the PR18-5DN Proximity Sensor is a trusted solution for engineers seeking precise, long-term detection performance in challenging production environments.
Autonics PR18-5DN People Also Asked Questions
What is the sensing distance and output configuration of the Autonics PR18-5DN Proximity Sensor?
The Autonics PR18-5DN Proximity Sensor features a 5mm sensing distance with an NPN Normally Open (NO) output configuration. Designed for flush installation, it ensures stable and precise metal detection in compact spaces. This sensor is ideal for automation systems requiring reliable switching performance and contactless object detection in industrial environments.
What are the electrical and performance specifications of the Autonics PR18-5DN?
The PR18-5DN operates on a DC 3-wire type 12β24VDC power supply and consumes a maximum of 10mA current. It offers a fast response frequency of 500Hz, making it suitable for high-speed automation lines. With a residual voltage of 1.5V max, the sensor ensures efficient signal transmission and reliable performance when connected to PLCs or controllers.
How durable is the Autonics PR18-5DN in industrial applications?
The Autonics PR18-5DN Proximity Sensor is built with a nickel-plated brass housing and a polybutylene terephthalate sensing head for excellent durability. It provides IP67-rated protection, ensuring strong resistance to dust, moisture, and oil exposure. Operating efficiently between -25Β°C to 70Β°C, this sensor delivers consistent performance in challenging industrial settings such as robotics, packaging, and material handling systems.







