Procurement managers rarely finalize PR12-4DP without reviewing Autonics Photoelectric Sensor, Contrinex Proximity Sensor and Autonics Tcn4 Series, ensuring that the chosen component meets budget, compliance, and delivery conditions.
Autonics PR12-4DP Proximity Sensor
The Autonics PR12-4DP Proximity Sensor delivers a 4mm sensing distance with PNP Normally Open output and compact M12 sensing side diameter for reliable metal detection in automation. Manufactured by Autonics, this proximity sensor from the PR Series ensures stable performance with hysteresis max. 10 of sensing distance and a standard sensing target 12Γ12Γ1mm (iron). It operates on a DC 3-wire type 12β24VDC power supply, supports 500Hz response frequency, and includes robust IP67 protection for demanding industrial environments.

| Brand | Autonics |
| Product Type | Proximity Sensor |
| Model Number | PR12-4DP |
Autonics PR12-4DP Proximity Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Brand | Autonics |
| Sensing side diameter | M12 |
| Sensing distance | 4mm |
| Hysteresis(distance) | Max. 10% of sensing distance |
| Standard sensing target | 12Γ12Γ1mm(iron) |
| Current specification | Current consumption: Max. 10mA |
| Control output | PNP Normally Open |
| Wire type and power | DC 3-wire type 12-24VDC @(=) |
| Installation | Non-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. 84g(approx. 72g) |
The Autonics PR12-4DP Proximity Sensor from the PR Series is a M12 non-flush inductive sensor designed to detect metal targets without contact. Featuring a 4 mm sensing range, 12β24 VDC supply voltage, and PNP Normally Open output, it ensures precise operation with a maximum residual voltage of 1.5 V. Built to the IP67 protection standard, it withstands moisture, oil, and dust in industrial environments. With its fast 500 Hz response frequency, the Autonics PR12-4DP Proximity Sensor guarantees reliable object detection across automation systems in India.
In industrial automation applications, the Autonics PR12-4DP Proximity Sensor is used for position sensing, object counting, and metal presence detection across assembly lines, conveyor systems, and material handling equipment. It delivers excellent repeatability and noise immunity, making it ideal for automotive, packaging, and machinery control systems. The non-flush M12 design enhances detection range and prevents false triggering near metallic surfaces. Its oil-resistant PVC cable and rugged nickel-plated brass housing make it suitable for environments exposed to vibration, oil, or dust. Engineers prefer this Autonics proximity switch for its consistent response and reliable integration with automation controllers.
Autonics Corporation, a global manufacturer of industrial automation components, develops the PR12-4DP Proximity Sensor with precision and reliability. Known for ISO-certified quality and long-lasting performance, Autonics sensors are widely used by OEMs, system integrators, and maintenance engineers. Each proximity switch undergoes strict testing for accuracy, stability, and temperature resistance. The PR Series sensors are built to meet industrial standards, offering exceptional operational reliability and installation flexibility. Backed by Autonicsβ extensive service network in India, the PR12-4DP delivers durable, accurate, and safe detection performance in demanding factory environments.
Within the Autonics PR Series, the PR12-4DP represents the PNP Type, Normally Open configuration designed for systems requiring output signal activation upon metal detection. For applications that need reverse logic operation, the equivalent variant is the PR12-4DP2, which provides a PNP Normally Closed output while maintaining identical 4 mm sensing distance, 12β24 VDC power range, and IP67-rated housing. Both models share the same M12 non-flush body and mechanical structure, allowing seamless interchangeability in automation systems. The PR12-4DP remains the preferred choice for Normally Open configurations within the PR Series.
The Autonics PR12-4DP Proximity Sensor combines precision, IP67 protection, and fast 500 Hz response for dependable metal detection in industrial automation. Operating on 12β24 VDC with a PNP Normally Open output, it ensures consistent and accurate performance across machinery and conveyor systems. Supported by Autonicsβ global reliability and engineering excellence, the PR12-4DP Proximity Sensor is trusted by automation professionals across India for its stability, compact size, and long-term durability.
Autonics PR12-4DP People Also Asked Questions
What is the sensing distance and output type of the Autonics PR12-4DP Proximity Sensor?
The Autonics PR12-4DP Proximity Sensor offers a sensing distance of 4mm, ideal for precise metal detection in automation systems. It features a PNP Normally Open (NO) output configuration, which activates the output signal when a metallic object enters the sensing range. This type of output is widely compatible with PLCs and control devices that use sourcing inputs.
What are the electrical and installation specifications of the Autonics PR12-4DP?
The PR12-4DP operates on a DC 3-wire 12β24VDC power supply, consuming a maximum of 10mA current. It supports non-flush installation, which provides better sensing stability in various mechanical setups. With a response frequency of 500Hz, it ensures fast and accurate detection in high-speed industrial automation systems like conveyors, robotics, and assembly machines.
How durable is the Autonics PR12-4DP in industrial environments?
The Autonics PR12-4DP Proximity Sensor is designed with a nickel-plated brass body and a polybutylene terephthalate sensing head for durability and resistance to wear. It carries an IP67 protection rating, safeguarding it from dust, water, and oil. Operating reliably between -25Β°C to 70Β°C, this sensor is ideal for demanding environments such as packaging, automotive, and production lines.







