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
RS Stock No. 896-7273
BrandRS PRO
$101.34
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Block - PNP-NO 10 mm 10 → 30 V dc Cable - IP67 30V Non Flush 50mm - 20mm 10mm
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Mfr. Part No.CQ28-10NNP-KW1
BrandSick
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Block - NPN-NO/NC 10 mm 10 → 30 V dc Cable - IP68 30V Non Flush 46mm - 27.6mm 5.5mm
RS Stock No. 446-0175
Mfr. Part No.CFAM 18P 1600 S14
BrandBaumer
$385.38
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Barrel M18 x 1 PNP-NO 8 mm 10 → 30 V dc M12 - 4 Pin - IP65 30V Flush 78.5mm - 18mm -
RS Stock No. 902-7439
Mfr. Part No.BCS M12BBG2-PSC40D-S04K
BrandBALLUFF
$140.18
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Barrel M12 x 1 PNP-NO 4 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Flush 75mm - - -
RS Stock No. 158-5063
Mfr. Part No.KB0025
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Barrel - - 20 mm 20 → 250 V ac/dc Cable - IP65 250V Non Flush 99mm - - -
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Mfr. Part No.BCS M18BBI3-PSC80D-S04K
BrandBALLUFF
$143.03
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Barrel M18 x 1 PNP-NO 8 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Flush 88.5mm - - -
RS Stock No. 744-9944
Mfr. Part No.E2K-X8MF1 2M
BrandOmron
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Barrel M18 x 1 PNP-NO 8 mm 10 → 30 V dc Cable - IP66 30V Non Flush 80mm - - -
RS Stock No. 842-8550
Mfr. Part No.CQ4-08EPS KT1
BrandSick
$170.50
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Block - PNP-NO 8 mm 10 → 30 V dc M8 - 3 Pin - IP67 30V Flush, Non Flush 16mm - 12mm 39.5mm
RS Stock No. 896-7282
BrandRS PRO
$106.53
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Block - PNP-NO 8 mm 10 → 30 V dc Cable - IP67 30V Non Flush 50mm - 30mm 7mm
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Mfr. Part No.KG5065
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Barrel M18 x 1 PNP/NPN-NO/NC 12 mm 10 → 36 V dc M12 - 4 Pin IO-LINK IP65, IP67 36V Non Flush 87mm IO-Link - -
RS Stock No. 744-9941
Mfr. Part No.E2K-X8ME1 2M
BrandOmron
$332.90
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Barrel M18 x 1 NPN-NO 8 mm 10 → 30 V dc Cable - IP66 30V Non Flush 80mm - - -
RS Stock No. 902-7502
Mfr. Part No.BCS M18BBG2-PSC15H-S04K
BrandBALLUFF
$128.22
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Barrel M18 x 1 PNP-NO 15 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Non Flush 88.5mm - - -
RS Stock No. 896-7235
BrandRS PRO
$123.61
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Barrel M18 x 1 PNP-NO 8 mm 10 → 30 V dc Cable - IP67 30V Non Flush 70mm - - -
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BrandRS PRO
$123.61
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Barrel M18 x 1 PNP-NO/NC 8 mm 10 → 30 V dc Cable - IP67 30V Non Flush 70mm - - -
RS Stock No. 146-6758
BrandRS PRO
$123.61
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Barrel M18 x 1 PNP-NO/NC 5 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Flush 83.5mm - - -
RS Stock No. 184-5632
BrandRS PRO
$128.08
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Barrel M30 x 1.5 PNP-NO/NC 10 mm 10 → 30 V dc Cable - IP67 30V Flush 62mm - - -
RS Stock No. 184-5587
BrandRS PRO
$115.92
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Barrel M12 x 1 NPN-NO 4 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Non Flush 69mm - - -
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Mfr. Part No.CBN15-30GK60-E2
$196.90
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Barrel M30 x 1.5 PNP-NO 15 mm 10 → 30 V dc Cable - IP67 30V Non Flush - - - 60mm
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$249.98
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Barrel M18 x 1 PNP/NPN-NO/NC 8 mm 10 → 40 V dc M12 - 4 Pin IO-LINK IP67, IP68, IP69K 40V Flush 86mm IO-Link - -
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BrandBALLUFF
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Barrel M12 x 1 Amplifier Interface 4 mm 4 → 8 V dc Cable - IP67 8V Flush 30mm - - -