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. 902-7502
Mfr. Part No.BCS M18BBG2-PSC15H-S04K
BrandBALLUFF
SGD108.38
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units
Barrel M18 x 1 PNP-NO 15 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Non Flush 88.5mm - - -
RS Stock No. 127-8119
Mfr. Part No.CM18-12NPP-EC1
BrandSick
SGD187.00
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Barrel M18 x 1 PNP-NO/NC 12 mm 10 → 36 V dc M12 - 4 Pin - IP68, IP69K 36V Non Flush 85mm - 18mm -
RS Stock No. 902-7518
Mfr. Part No.BCS M30B4E1-PSC25H-EP02
BrandBALLUFF
SGD172.99
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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. 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. 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. 902-7515
Mfr. Part No.BCS M30B4E2-PSC25H-S04K
BrandBALLUFF
SGD170.95
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Barrel M30 x 1.5 PNP-NO 25 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Flush 78.5mm - - -
RS Stock No. 184-8809
Mfr. Part No.CBN8-12GH60-E2-V1
SGD168.00
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Barrel M12 x 1 PNP-NO 8 mm 10 36 V dc M12 - 4 Pin - IP65 36V Non Flush 61.2mm - - -
RS Stock No. 902-7420
Mfr. Part No.BCS M08T4E2-PSM15C-S49G
BrandBALLUFF
SGD285.95
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Barrel M8 x 1 PNP-NO 1.5 mm 11 → 30 V dc M8 - 3 Pin - IP65 30V Flush 54mm - - -
RS Stock No. 406-354
Mfr. Part No.XT130B1FBL2
SGD286.15
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Barrel M30 x 1.5 NC 10 mm 24 → 240 V ac Cable - IP67 - Flush 70mm - - -
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. 2508469867
Mfr. Part No.CJ30-50K10-E0123
SGD300.56
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