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Inductive proximity sensors detect metallic objects without physical contact — making them the go-to choice for position sensing, object detection and end-of-travel monitoring in industrial automation. Using a high-frequency electromagnetic field, the sensor registers the presence of metal and converts it into a clean switching signal: fast, repeatable, and wear-free. We stock sensors from SICK, Schneider Electric, Autonics, Datalogic and Telemecanique — with full technical documentation and engineering support available from our team in Riga.
Inductive proximity sensors detect the presence of metallic objects without physical contact. An internal oscillator generates a high-frequency electromagnetic field at the sensing face; when a metal target enters this field, eddy currents are induced on its surface, causing a measurable drop in oscillator amplitude. The sensor's electronics convert this change into a discrete switching output — reliably, repeatedly, and with no moving parts to wear out.
Compared to optical or capacitive alternatives, inductive sensors are largely unaffected by dust, oils, moisture, and ambient light — which is why they remain the standard choice for continuous duty in demanding production environments.
Key advantages for industrial applications
Non-contact detection of ferrous and non-ferrous metals — no mechanical wear, no maintenance cycles
High repeatability even at intensive duty cycles
Robust performance in the presence of vibration, coolants, oils, and industrial dust
Protection ratings up to IP67/IP68 depending on model
Long service life with minimal intervention
Technical specifications at a glance
Parameter | Typical values |
|---|---|
Housing form | Cylindrical (M8, M12, M18, M30) or rectangular |
Mounting type | Flush (shielded) or non-flush (unshielded) |
Output type | PNP, NPN, NO, NC, IO-Link |
Supply voltage | 10–30 V DC; AC variants available |
Connection | 2 m cable or M8/M12 connector |
Protection rating | IP65 to IP68 |
Sensing range | 1–40 mm (depends on model and target material) |
Brands in our range
We supply inductive proximity sensors from SICK, Datalogic, Autonics, Schneider Electric and Telemecanique Sensors — all with full datasheets and technical documentation. For the most commonly requested models, stock is held in Riga for same-week dispatch to anywhere in Europe.
How to select the right inductive proximity sensor
Before ordering, confirm the following:
Sensing range and target material — iron, aluminium, and stainless steel have different correction factors
Housing size and mounting type — flush or non-flush, M8 through M30
Output configuration — PNP or NPN, NO or NC; IO-Link if diagnostics or remote configuration are needed
Supply voltage and connection type — cable or M8/M12 connector
Environmental requirements — operating temperature range, protection class, resistance to weld spatter or coolants
Not sure which model fits your application? Our engineers are available to help you match the right sensor to your system — including cross-referencing between brands.
Typical applications
End-of-travel and position sensing for cylinders, conveyors and robotic arms
Presence detection of metal parts, fasteners and sheet stock
Part counting and speed monitoring on production lines
Safety and interlock functions in automated machinery
Inductive proximity sensors generate a high-frequency electromagnetic field at the sensing face. When a metal object enters this field, eddy currents form on its surface and cause a detectable drop in oscillator amplitude. The sensor converts this change into a switching output signal — without any physical contact with the target.
A PNP sensor sources current to the output when active — the standard in European and most international automation systems. An NPN sensor sinks current instead. The correct choice depends on your PLC or controller input type. If you're unsure, our engineers can confirm compatibility before you order.
Inductive sensors are widely used across industrial automation, metal fabrication, food and beverage processing, pharmaceutical manufacturing, logistics, and robotics — wherever reliable, non-contact detection of metallic objects is required under continuous duty conditions.
Yes. Many models are designed specifically for demanding industrial conditions, with IP67 or IP68 protection against dust and water ingress, resistance to vibration, and operating temperature ranges suitable for both cold storage and high-temperature production environments. We can help you identify the right specification for your conditions.
