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. 184-5584
BrandRS PRO
$108.16
Each
units
Block M12 x 1 PNP-NO 2 mm 10 → 30 V dc Cable - IP67 30V Flush 52mm - - -
RS Stock No. 184-5633
BrandRS PRO
$128.77
Each
units
Barrel M30 x 1.5 PNP-NO 10 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Flush 79mm - - -
RS Stock No. 184-5590
BrandRS PRO
$108.16
Each
units
Barrel M12 x 1 PNP-NO 4 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Non Flush 69mm - - -
RS Stock No. 184-5593
BrandRS PRO
$129.27
Each
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Barrel M18 x 1 NPN-NO/NC 5 mm 10 → 30 V dc Cable - IP67 30V Flush 70mm - - -
RS Stock No. 184-5610
BrandRS PRO
$114.89
Each
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Barrel M18 x 1 NPN-NO/NC 8 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Non Flush 91.5mm - - -
RS Stock No. 896-7251
BrandRS PRO
$125.45
Each
units
Barrel M30 x 1.5 PNP-NO 10 mm 10 → 30 V dc Cable - IP67 30V Flush 79mm - - -
RS Stock No. 184-5588
BrandRS PRO
$108.16
Each
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Barrel M12 x 1 PNP-NO 4 mm 10 → 30 V dc Cable - IP67 30V Non Flush 56mm - - -
RS Stock No. 184-5583
BrandRS PRO
$108.16
Each
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Barrel M12 x 1 NPN-NO 2 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Flush 65mm - - -
RS Stock No. 896-7248
BrandRS PRO
$125.45
Each
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Barrel M18 x 1 PNP-NO 8 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Non Flush 70mm - - -
RS Stock No. 184-5592
BrandRS PRO
$128.74
Each
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Barrel M18 x 1 NO 5 mm 20 → 250 V ac M12 - 4 Pin - IP67 - Flush 83.5mm - - -
RS Stock No. 896-7279
BrandRS PRO
$191.21
Each
units
Barrel M30 x 1.5 AC/DC-NC 15 mm 20 → 250 V ac/dc Cable - IP67 250V Non Flush 91mm - - -
RS Stock No. 184-5642
BrandRS PRO
$183.01
Each
units
Barrel M30 x 1.5 NO 15 mm 20 → 250 V ac/dc M12 - 4 Pin - IP67 250V Non Flush 91mm - - -
RS Stock No. 184-5572
BrandRS PRO
$217.50
Each
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Block - NPN-NO - 10 → 30 V dc Cable - IP67 30V Non Flush 43mm - 24mm 20mm
RS Stock No. 184-5571
BrandRS PRO
$106.97
Each
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Block - NPN-NO 8 mm 10 → 30 V dc Cable - IP67 30V Non Flush 30mm - 50mm 7mm
RS Stock No. 786-5958
Mfr. Part No.CM30-25NAP-KW1
BrandSick
$280.00
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. 902-7464
Mfr. Part No.BCS M30B4I1-PSC15D-EP02
BrandBALLUFF
$210.06
Each
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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. 902-7521
Mfr. Part No.BCS M30BBE1-PSC25H-EP02
BrandBALLUFF
$167.05
Each
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Barrel M30 x 1.5 PNP-NO 25 mm 10 → 30 V dc Cable - IP67 30V Non Flush 66.5mm - - -
RS Stock No. 377-8504
Mfr. Part No.BCS003K
$262.80
Each
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Barrel - PNP/NPN-NO/NC 25 mm 10 → 30 V dc Cable - IP65 30V Flush - - - 10mm
RS Stock No. 837-7648
Mfr. Part No.BC10-QF5.5-AP6X2
BrandTurck
$260.37
Each
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Block - PNP-NO 10 mm 10 → 30 V dc Cable - IP67 30V Flush 50.3mm - 20.3mm 5.5mm
RS Stock No. 780-0080
Mfr. Part No.CBB8-18GS75-E2
$196.90
Each
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Barrel M18 x 1 PNP-NO 8 mm 10 → 30 V dc Cable - IP67 30V Flush 75.5mm - - -
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