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. 902-7401
Mfr. Part No.BCS M12T4D1-XXS80G-EP02-GZ01-002
BrandBALLUFF
SGD134.11
Each
units
Barrel M12 x 1 Amplifier Interface 8 mm 4 → 8 V dc Cable - IP67 8V Non Flush 30mm - - -
RS Stock No. 786-5958
Mfr. Part No.CM30-25NAP-KW1
BrandSick
SGD236.00
Each
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Barrel M30 x 1.5 NO/NC 25 mm 20 → 250 V ac Cable - IP67 - Non Flush 75.6mm - - -
RS Stock No. 739-6626
Mfr. Part No.KG5040
SGD217.60
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Barrel M18 x 1 PNP/NPN-NO/NC 8 mm 10 → 55 V dc Cable - IP65 55V Non Flush 110mm - - -
RS Stock No. 127-8122
Mfr. Part No.CM30-25NPP-EC1
BrandSick
SGD191.00
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Barrel M30 x 1.5 PNP-NO/NC 25 mm 10 → 36 V dc M12 - 4 Pin - IP68, IP69K 36V Non Flush 74mm - 30mm -
RS Stock No. 188-5248
Mfr. Part No.CA18CAN12BPA2IO
SGD208.77
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Barrel M18 x 1 PNP/NPN-NO/NC 12 mm 10 → 40 V dc M12 - 4 Pin IO-LINK IP67, IP68, IP69K 40V Non Flush 86mm IO-Link - -
RS Stock No. 902-7436
Mfr. Part No.BCS M12B4I1-PSC40D-EP02
BrandBALLUFF
SGD167.73
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Barrel M12 x 1 PNP-NO 4 mm 10 → 30 V dc Cable - IP67 30V Flush 61mm - - -
RS Stock No. 902-7495
Mfr. Part No.BCS M12BBG1-PSC80H-EP02
BrandBALLUFF
SGD120.40
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Barrel M12 x 1 PNP-NO 7 mm 10 → 30 V dc Cable - IP67 30V Flush 61mm - - -
RS Stock No. 902-7473
Mfr. Part No.BCS Q40BBAA-PSC20C-EP00,3-GS49
BrandBALLUFF
SGD91.86
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Block - PNP-NO 20 mm 10 → 30 V dc Cable - IP67 30V Flush 40mm - 40mm 10mm
RS Stock No. 184-8799
Mfr. Part No.CCN15-30GS60-E2-V1
SGD177.00
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Barrel M30 x 1.5 PNP-NO 15 mm 10 60 V dc M12 - 4 Pin - IP67 60V Non Flush 72.5mm - - -
RS Stock No. 837-7705
Mfr. Part No.BC20-K40SR-VP4X2-H1141
BrandTurck
SGD462.19
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Barrel M30 x 1.5 NO/NC 20 mm 10 → 65 V dc M16 Gland - IP67 65V Flush 90mm - 40mm -
RS Stock No. 902-7391
Mfr. Part No.BCS G06T4B-XXS15C-EP02-GZ01-002
BrandBALLUFF
SGD210.41
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Barrel - Amplifier Interface 1.5 mm 4 → 8 V dc Cable - IP67 8V Flush 18mm - 4mm -
RS Stock No. 902-7464
Mfr. Part No.BCS M30B4I1-PSC15D-EP02
BrandBALLUFF
SGD172.99
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Barrel M30 x 1.5 PNP-NO 15 mm 10 → 30 V dc Cable - IP67 30V Flush 66.5mm - - -
RS Stock No. 837-7686
Mfr. Part No.BC20-CP40-FZ3X2
BrandTurck
SGD504.09
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Block 1/2-14 NPT NO/NC 20 mm 20 → 250 V ac 1/2-14NPT Connector - IP67 - Flush 114mm - 40mm 40mm
RS Stock No. 856-8434
Mfr. Part No.EC3025TBAPL
SGD504.28
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Barrel M30 x 1.5 NO/NC 25 mm 20 → 265 V ac Cable - IP67 - Non Flush 91mm - - -
RS Stock No. 902-7411
Mfr. Part No.BCS R08RR01-PSM80C-EP00,2-GS49
BrandBALLUFF
SGD170.67
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Block - PNP-NO 8 mm 12 → 30 V dc Cable - IP67 30V Flush 34mm - 16mm 8mm
RS Stock No. 822-4504
Mfr. Part No.E2K-X4ME2
BrandOmron
SGD246.16
Each
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Barrel M12 x 1 NPN-NC 4 mm 10 → 30 V dc Cable - IP66 30V Non Flush 80mm - 10.7mm -
RS Stock No. 857-7264
Mfr. Part No.CA18CLN12TC
SGD376.61
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Barrel - NO/NC 12 mm 20 → 250 V ac Cable - IP67 - Non Flush 87mm - - -
RS Stock No. 837-7730
Mfr. Part No.BCF 5-S18-AP4X
BrandTurck
SGD284.91
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Barrel M18 x 1 PNP-NO 5 mm 10 → 65 V dc Cable - IP67 65V Flush 72.5mm - 27mm -
RS Stock No. 188-5250
Mfr. Part No.CA30CAF16BPA2IO
SGD399.02
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Barrel M30 x 1.5 PNP/NPN-NO/NC 16 mm 10 → 40 V dc M12 - 4 Pin IO-LINK IP67, IP68, IP69K 40V Flush 81mm IO-Link - -
RS Stock No. 144-4447
Mfr. Part No.KG5309
SGD136.54
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Barrel M18 x 1 PNP-NO 30 mm 10 → 30 V dc M12 - 4 Pin IO-LINK IP65, IP67, IP69K 30V Non Flush 92.5mm IO-Link - -
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Introducing the range of RS PRO Capacitive Proximity Sensors. These versatile and high-quality sensors are an essential addition to any environment where measurement of attributes like pressure, thickness, etc. are integral to business operations, like manufacturing plants and industrial environments. ...