Sensors

Area Sensors 6 products

Measurement-grade light grids — multi-beam arrays for object profiling, height, and zone detection.

Contact-style displacement probes — LVDT and digital touch probes for precision dimensional measurement.

Electrostatic charge sensors for plastics, printing, and electronics manufacturing — new and obsolete in stock.

Encoders 157 products

Rotary and linear encoders — incremental and absolute, optical and magnetic, for position feedback.

Fiber optic sensors with through-beam and diffuse heads for tight-space, high-temperature detection.

Float-style level switches — vertical and horizontal floats, reed-switch and magnetic-actuated, for any liquid.

Flow Sensors 57 products

Flow sensors and meters for liquid, gas, and compressed air — current and obsolete models stocked.

Intrinsic safety barriers — Zener barriers and galvanic isolators for hazardous-area (ATEX/IECEx) circuits.

Laser triangulation displacement sensors for precision distance, thickness, and surface measurement.

Line-laser profile sensors and 3D triangulation systems for inline inspection — current and obsolete in stock.

Laser Sensors 2 products

Laser sensors — laser photoelectric, laser distance, and laser line sensors for precision detection.

Level Sensors 19 products

Liquid and bulk-solid level sensors — ultrasonic, radar, capacitive, vibrating fork, and conductivity types.

Magnetostrictive, LVDT, draw-wire, and linear-encoder position sensors — current and obsolete in stock.

Precision measurement sensors for dimension, distance, thickness, and displacement in industrial QA.

Optical Sensors 40 products

Optical sensors — photoelectric, fiber optic, laser, and color sensors using light-based detection.

Other Sensors 23 products

Specialty industrial sensors — humidity, gas detection, color, contrast, mark, and condition monitoring.

Diffuse, retro-reflective, and through-beam photoelectric sensors — current and obsolete models stocked.

Devices that monitor mechanical position state — limit switches, valve position monitors, prox-switch sets.

Positioning sensors — magnetostrictive, LVDT, draw-wire, linear potentiometer, and absolute linear position.

Pressure Sensors 299 products

Pressure transmitters, switches, and gauge sensors for hydraulic, pneumatic, and process applications.

Proximity Sensors 991 products

Inductive and capacitive proximity sensors in M8/M12/M18/M30 — current production and obsolete models.

Sensor distribution blocks, junction modules, and IO-Link masters — multi-sensor fan-out for clean panels.

Industrial static eliminators — ionizing bars, nozzles, and AC/DC power supplies for ESD control on plastics/film.

RTDs, thermocouples, and temperature transmitters for industrial process and machine monitoring.

Transducer mounts, isolation valves, snubbers, manifolds, cable assemblies, and calibration accessories.

Strain-gauge bridge amplifiers and signal conditioners that convert raw transducer output to standard signals.

Ultrasonic distance and level sensors for non-contact detection of any material — current and legacy.

Accelerometers and vibration transmitters for condition monitoring — current and obsolete in stock.

Vision Sensors 60 products

Smart vision sensors for presence, OCR, barcode, and simple inspection — entry-level machine vision.

Sensors

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Autonics ARIO-C-CL Slim Remote I/O
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Autonics ARIO-C-EC Slim Remote I/O
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Autonics ARIO-C-EI Slim Remote I/O
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Autonics ARIO-C-MR Slim Remote I/O
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Autonics ARIO-C-PB Slim Remote I/O
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Autonics ARIO-C-PN Slim Remote I/O
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Autonics ARIO-P-B Slim Remote I/O
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Autonics ARIO-P-F1 Slim Remote I/O
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Autonics ARIO-S-AI02V2 Slim Remote I/O
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Autonics ARIO-S-AI04C1 Slim Remote I/O
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Autonics ARIO-S-AI04C2 Slim Remote I/O
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Autonics ARIO-S-AI04TC Slim Remote I/O
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Autonics ARIO-S-AI04V2 Slim Remote I/O
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Autonics ARIO-S-AO04C1 Slim Remote I/O
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Choosing Sensors components

Sensor selection comes down to matching the detection principle to the target, then confirming the electrical and mechanical interface to the existing machine. A "20mm proximity sensor" exists in dozens of variants; the OEM part number encodes most of the details that actually matter for a drop-in replacement.

Specs to confirm before ordering a sensor:

  • Detection technology: photoelectric (diffuse, retro-reflective, through-beam), inductive, capacitive, ultrasonic, fiber-optic, laser
  • Sensing range and minimum object size, with target material accounted for
  • Output type: PNP, NPN, push-pull, NO/NC, analog 0–10 V or 4–20 mA, IO-Link
  • Supply voltage — 10–30 VDC is common but not universal; some legacy parts are AC-only
  • Housing: M8/M12/M18/M30 barrel, rectangular block, flat slot
  • Cable vs. M8/M12 quick-disconnect, and pin count (3, 4, 5, 8)
  • Environmental rating (IP67/IP68/IP69K) and operating temperature

For photoelectric retro-reflective and through-beam types, also note the reflector or emitter pairing — mixing brands within a beam pair rarely works. On inductive proximity sensors, watch for "flush" vs. "non-flush" mounting; using a flush part in a non-flush hole reduces range significantly. Pressure and temperature sensors must match the process connection (e.g., G1/4, 1/4" NPT, sanitary clamp) as well as the electrical signal.

Typical applications include conveyor part-present detection, end-of-stroke confirmation on pneumatic cylinders, fill-level verification on bottling lines, and weld-cell safety confirmation. For obsolete sensor families still installed in production equipment, replacing like-for-like with a tested unit avoids re-programming PLC inputs, re-teaching, and mechanical re-fitting.

If the exact OEM part number is no longer in production, request a quote — we frequently locate new-old-stock and tested surplus units of discontinued sensor lines.

Can you source obsolete or discontinued sensors?
Yes. Discontinued and end-of-life sensor models are a core part of our inventory and sourcing network. Provide the OEM part number and we will quote availability.
What output types do you stock — PNP, NPN, analog, IO-Link?
All of them. The output type is set by the OEM part number; when only one variant is available, we will state it before you order so you can confirm it matches your PLC input card.
Are surplus sensors tested?
Yes. Every unit is bench-tested for basic function — power-up, output switching, and range/response where applicable — before shipping. Functional issues within 12 months are covered.
Can you cross from one brand to another?
For commodity proximity and basic photoelectric sensors, often yes. For fiber-optic amplifiers, vision sensors, and IO-Link devices, cross-brand replacement usually requires re-programming and is not a true drop-in; we will tell you when that is the case.
How fast is shipping?
In-stock items ship same or next business day from St. Louis. US orders over $50 ship free; international over $350 ships free.
What if a sensor arrives DOA?
Report it within 30 days and we will replace or refund. Bench-test results are recorded before shipment, so DOA cases are rare but handled without dispute.
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