Maintenance teams planning replacements for PRL18-8AO frequently review Autonics Photoelectric Sensor, Contrinex Proximity Sensor and Autonics Tcn4 Series to prevent downtime, checking availability and compatibility with existing systems.
Autonics PRL18-8AO Proximity Sensor
The Autonics PRL18-8AO Proximity Sensor offers 8mm sensing distance, M18 sensing side diameter, and a dependable Normally Open output with AC 2-wire 100β240VAC power for stable and accurate industrial detection. Manufactured by Autonics under the Autonics Proximity Sensors product category, this model belongs to the PR Series. It ensures maximum 10% hysteresis, supports a 25Γ25Γ1mm iron target, provides IP67 protection, and delivers a 20Hz response frequency for consistent performance in industrial environments.

| Brand | Autonics |
| Product Type | Proximity Sensor |
| Model Number | PRL18-8AO |
Autonics PRL18-8AO Proximity Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Sensing side diameter | M18 |
| Sensing distance | 8mm |
| Hysteresis(distance) | Max. 10% of sensing distance |
| Standard sensing target | 25Γ25Γ1mm(iron) |
| Current specification | Leakage current: Max. 2.5mA |
| Control output | Normally Open |
| Wire type and power | AC 2-wire type100-240VAC~ |
| Installation | Non-flush |
| Cable Standard/material | Standard cable |
| Body length | Long body |
| Insulation type | Double insulation or reinforced insulation(mark: @(INS), dielectric strength between the measuring input part and the power part: 1kV) |
| Residual voltage | Max. 10V |
| 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 | Brass(nickel plated) |
| Response frequency | 20Hz |
| Weight | Approx. 142g(approx. 130g) |
The Autonics PRL18-8AO delivers an 8mm sensing distance in an M18 non-flush housing, running on an AC 2-wire 100β240VAC input with Normally Open output. With leakage current limited to 2.5mA and a 20Hz response rate, it provides reliable detection for conveyors and automation systems. More choices are available at Autonics Proximity Sensors.
The Autonics PRL18-8AO is built with nickel-plated brass and an IP67-rated structure, ensuring protection against dust, oil, and moisture. It performs consistently in temperatures from -25Β°C to 70Β°C, supported by reinforced insulation tested to 1kV. Engineers preferring PR models for precision can review Autonics Proximity Sensors PR Series.
The PRL18-8AO is widely used in packaging machines, elevator systems, material handling, and rotating equipment sensing. Its long-body design offers secure mounting, while the 20Hz frequency supports real-time signal response. Junior engineers find it easy to wire, while maintenance teams rely on its stable performance.
Preferred by wholesalers, dealers, and distributors, the Autonics PRL18-8AO combines accuracy, rugged build, and long service life, making it a dependable Cylindrical Inductive Proximity Sensor. With proven results in Indian industries, it ensures precise 8mm sensing across automation projects.







