Capacitive Proximity Sensors

Capacitive proximity sensors are a type of sensor that can detect metallic and non-metallic materials. They can detect and measure materials that are conductive or have a greater dielectric constant than air. They are able to detect materials in solid form, in powder form or in granulate.
How do they work?
Capacitive sensors use an electrical field to detect objects. Any changes in capacitance in the sensing area are detected by the sensor, which then changes state.
What are they used for?
Capacitive proximity sensors are incredibly versatile as they are able to sense both ferrous and non-ferrous materials. These sensors are frequently found within the automotive industry, in the food industry and within storage and conveyor systems. Capacitive proximity sensors can be used to detect liquid through non-ferrous materials such as glass or plastic. Typical applications include the induction moulding process, liquid level detection and material level control.
Things to consider
Capacitive proximity sensors are ideal for sensing all sorts of materials, but you must keep them away from non-target materials. Non-target materials can potentially interfere with the sensor, and provide inaccurate or incorrect readings.
Capacitive proximity sensors have an excellent life span and are highly reliable. They are resistant to fault and contaminants such as dust and spray particles have very little impact on them. However, you should bear in mind that they can be a little slower to provide a reading that inductive sensors.

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Description Price Body Style Thread Size Output Type Detection Range Supply Voltage Terminal Type Communication Protocol IP Rating Maximum DC Voltage Mounting Style Length Interface Width Depth
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BrandBALLUFF
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BrandOmron
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Barrel M12 x 1 PNP-NO 4 mm 10 → 30 V dc Cable - IP66 30V Non Flush 80mm - 10.7mm -
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Mfr. Part No.BCS M30BBI2-PSC15D-S04K
BrandBALLUFF
$153.35
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Barrel M30 x 1.5 PNP-NO 15 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Flush 79mm - - -
RS Stock No. 814-0333
Mfr. Part No.KF5002
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Barrel M12 x 1 PNP-NO 12 mm 10 → 36 V dc M12 - 4 Pin - IP65 36V Non Flush 61.2mm - - -
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Mfr. Part No.BCS G04T4D-XXS10C-EP02-GZ01-002
BrandBALLUFF
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Barrel - Amplifier Interface 1 mm 4 → 8 V dc Cable - IP67 8V Flush 29mm - 4mm -
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Mfr. Part No.BC 8-Q10-RN6X2-0.15M-SSFP3/S90
BrandTurck
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Block - PNP-NO 10 mm 10 → 30 V dc Cable - IP67 30V Non Flush 50mm - 25mm 5mm
RS Stock No. 896-7260
BrandRS PRO
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BrandRS PRO
$112.50
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Block - NPN-NO 5 mm 10 → 30 V dc Cable - IP67 30V Flush 30mm - 50mm 7mm
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Mfr. Part No.CM18-12NPP-EW1
BrandSick
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Barrel M18 x 1 PNP-NO/NC 12 mm 10 → 36 V dc Cable - IP68, IP69K 36V Non Flush 86mm - 18mm -
RS Stock No. 896-7267
BrandRS PRO
$130.55
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BrandTurck
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Barrel M30 x 1.5 PNP-CO 15 mm 10 → 65 V dc M12 - 4 Pin - IP67 65V Flush, Non Flush 71mm - - -
RS Stock No. 184-5622
BrandRS PRO
$138.00
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Mfr. Part No.CQ4-08EPO KT1
BrandSick
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Block - PNP-NC 16 mm 10 → 30 V dc M8 - 3 Pin - IP67 30V Flush, Non Flush 16mm - 12mm 39.5mm
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BrandRS PRO
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Barrel M30 x 1.5 NPN-NO/NC 15 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Non Flush 91mm - - -
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