PR18-8DN Inductive Proximity Sensor M18
Part number PR18-8DN
Cylindrical M18 inductive sensor, 8 mm sensing distance (shielded), NPN NO, 12–24 V DC 3-wire, 2 m cable, nickel-plated brass, IP67, 500 Hz.
- CE
- IP67
- NPN
- DC 3-wire

Overview
The Autonics PR18-8DN is a standard M18 shielded (flush) inductive proximity sensor with 8 mm sensing distance, NPN normally-open output and 12–24 V DC 3-wire connection with a 2 m cable. The nickel-plated brass housing is IP67, and the sensor includes reverse-polarity and surge protection with an LED indicator. The PR series covers M8 to M30 sizes in shielded and non-shielded versions, NPN or PNP, NO or NC, with cable or M12 connector (PRCM series). It is a direct, lower-cost alternative to Omron E2E and Sick IME sensors for position detection on conveyors, machines and packaging lines.
Key features
- M18 shielded (flush-mount), 8 mm sensing distance, 500 Hz response
- NPN NO output, 200 mA, 12–24 V DC 3-wire; PNP and NC versions (PR18-8DP/DN2)
- Nickel-plated brass housing, IP67, 2 m PVC cable (M12 connector: PRCM18-8DN)
- Reverse-polarity, surge and short-circuit protection; LED indicator
- Series: M8, M12, M18, M30; shielded and non-shielded; cross-reference to E2E/IME
Typical applications
- Position and end-of-stroke detection on machines
- Counting metal parts on conveyors
- Cylinder and gate position sensing
- Replacement of discontinued proximity sensors
Technical specifications — PR18-8DN
| Sensing | |
|---|---|
| Sensing distance | 8 mm ±10 % (shielded) |
| Setting distance | 0–5.6 mm |
| Standard target | 24 × 24 × 1 mm iron |
| Hysteresis | ≤10 % |
| Response frequency | 500 Hz |
| Output | |
| Type | NPN NO (DN); PNP (DP), NC (DN2/DP2) versions |
| Load current | ≤200 mA |
| Power | 12–24 V DC (10–30 V DC) |
| Construction | |
| Housing | Nickel-plated brass, M18 × 1 |
| Connection | 2 m cable (M12 connector in PRCM series) |
| Sensing face | PBT |
| Environment | |
| Ambient temperature | -25…+70 °C |
| Protection | IP67 |
| Approvals | CE |
Specifications are summarised from the manufacturer's documentation for selection purposes. Always confirm against the current datasheet before design-in; we send the datasheet and the exact ordering code with every quotation.
Related part numbers and alternatives
| Part number | Relationship | |
|---|---|---|
PRCM18-8DN | Same sensor with M12 connector | Quote |
PR18-8DP | PNP NO version | Quote |
E2E-X8MD1 | Omron equivalent M18 shielded sensor | Quote |
Not sure which variant you need? Send us the nameplate photo or the old part number and we will identify the current equivalent.
Supply, documentation and lead time
What you receive
- Genuine Autonics product in original packaging
- Commercial invoice and packing list; Certificate of Conformance on request
- Datasheet, declaration of conformity and country of origin as issued by the manufacturer
- Manufacturer warranty, period stated on the quotation
How we quote
- Reply within one business day with price, lead time and stock position
- Alternatives proposed when they improve price or delivery
- Incoterms of your choice: EXW Hai Phong, FOB/FCA, CIF/DAP to your site
- Consolidated shipments for multi-line orders; export documentation for buyers outside Vietnam
Indicative HS code 8536.50 — final classification is confirmed on the commercial invoice.
Frequently asked questions
Does the PR18-8DN replace an Omron E2E-X8MD1 or SICK IME18?
Functionally yes — same M18 thread, 8 mm shielded sensing and DC output. Confirm NPN/PNP and wiring colours; we send the cross-reference with the quotation.
What is the difference between shielded and non-shielded?
Shielded (flush) sensors can be mounted flush in metal with a shorter sensing distance; non-shielded (PRL18-14DN) have 14 mm distance but need clearance from surrounding metal.
Is the PR18-8DN available from stock, and what is the lead time?
PR series sensors are stocked in Vietnam with delivery in 1–3 days. We confirm with the quotation.