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 IP Rating Maximum DC Voltage Mounting Style Length Interface Width Depth Maximum AC Voltage
RS Stock No. 786-5958
Mfr. Part No.CM30-25NAP-KW1
BrandSick
$230.01
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Barrel M30 NO/NC 25 mm 20 → 250 V ac Cable IP67 - Non Flush 75.6mm - - - 250V
RS Stock No. 902-7464
Mfr. Part No.BCS M30B4I1-PSC15D-EP02
BrandBALLUFF
$208.82
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Barrel M30 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
$140.46
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Barrel M30 PNP-NO 25 mm 10 → 30 V dc Cable IP67 30V Non Flush 66.5mm - - - -
RS Stock No. 377-8504
Mfr. Part No.BCS003K
$208.50
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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
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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
$221.77
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Barrel M18 PNP-NO 8 mm 10 → 30 V Cable IP67 30V Flush 75.5mm - - - -
RS Stock No. 859-2875
Mfr. Part No.CD50CNF06NO
$77.28
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Block - NPN-NO 6 mm 10 → 30 V dc Cable IP67 30V Non Flush 30mm - 50mm 7mm -
RS Stock No. 896-7229
BrandRS PRO
$60.89
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Barrel M18 NPN-NO 5 mm 10 → 30 V dc Cable IP67 30V Flush 70mm - - - -
RS Stock No. 218-995
Mfr. Part No.CQ28-10NPP-KW1
BrandSick
$168.30
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Block - PNP-NO/NC 10 mm 10 → 30 V dc Cable IP68 30V Non Flush 46mm - 27.6mm 5.5mm -
RS Stock No. 902-7455
Mfr. Part No.BCS M30B4I2-PSC15D-S04K
BrandBALLUFF
$198.38
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Barrel M30 PNP-NO 15 mm 10 → 30 V dc M12 - 4 Pin IP67 30V Flush 79mm - - - -
RS Stock No. 459-011
Mfr. Part No.XT130B1FAL2
$199.79
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Barrel M30 NO 10 mm 24 → 240 V ac Cable IP67 - Flush 70mm - - - 264V
RS Stock No. 280-6529
Mfr. Part No.CJ15+U1+A2
$535.55
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Block - PNP-NO/NC 15 mm 10 → 30 V dc M20 Gland IP65 30V - 118mm - 40mm 40mm -
RS Stock No. 280-6541
Mfr. Part No.CJ40-FP-A2-P1
$658.42
Each
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Block - PNP-NO/NC 40 mm 10 → 60 V dc M20 Gland IP65 60V - 80mm - 80mm 52.5mm -
RS Stock No. 902-7461
Mfr. Part No.BCS M30BBI1-PSC15D-EP02
BrandBALLUFF
$128.36
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Barrel M30 PNP-NO 15 mm 10 → 30 V dc Cable IP67 30V Flush 66.5mm - - - -
RS Stock No. 902-7439
Mfr. Part No.BCS M12BBG2-PSC40D-S04K
BrandBALLUFF
$134.83
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Barrel M12 PNP-NO 4 mm 10 → 30 V dc M12 - 4 Pin IP67 30V Flush 75mm - - - -
RS Stock No. 446-0175
Mfr. Part No.CFAM 18P 1600 S14
BrandBaumer
$381.91
Each
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Barrel M18 PNP-NO 8 mm 10 → 30 V dc M12 - 4 Pin IP65 30V Flush 78.5mm - 18mm - -
RS Stock No. 902-7502
Mfr. Part No.BCS M18BBG2-PSC15H-S04K
BrandBALLUFF
$111.77
Each
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Barrel M18 PNP-NO 15 mm 10 → 30 V dc M12 - 4 Pin IP67 30V Non Flush 88.5mm - - - -
RS Stock No. 902-7411
Mfr. Part No.BCS R08RR01-PSM80C-EP00,2-GS49
BrandBALLUFF
$188.15
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Block M8 PNP-NO 8 mm 12 → 30 V dc Cable IP67 30V Flush 34mm - 16mm 8mm -
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Mfr. Part No.KB0025
$254.21
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Barrel - - 20 mm 20 → 250 V ac/dc Cable IP65 250V Non Flush 99mm - - - 250V
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Mfr. Part No.CQ4-08EPS KT1
BrandSick
$173.91
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Block M8 PNP-NO 8 mm 10 → 30 V dc M8 - 3 Pin IP67 30V Flush, Non Flush 16mm - 12mm 39.5mm -
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