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
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£102.22
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Barrel M30 x 1.5 NO/NC 25 mm 20 250 V ac Cable IP67 - Non Flush 75.6mm - - - 250V
RS Stock No. 218-995
Mfr. Part No.CQ28-10NPP-KW1
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£69.50
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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. 219-049
Mfr. Part No.CQ28-10NNP-KW1
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£69.50
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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. 361-8424
Mfr. Part No.CQ35-25NPP-KW1
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£89.94
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Block - PNP-NO/NC 25 mm 10 → 40 V dc Cable IP67 40V Non Flush 57.5mm - 35mm 15mm -
RS Stock No. 842-8557
Mfr. Part No.CQ4-08EPO KT1
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£72.68
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Block - PNP-NC 16 mm 10 → 30 V dc M8 - 3 Pin IP67 30V Flush, Non Flush 16mm - 12mm 39.5mm -
RS Stock No. 842-8550
Mfr. Part No.CQ4-08EPS KT1
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£72.68
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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. 842-8554
Mfr. Part No.CQ4-08EPS KU1
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£72.68
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Block - PNP-NO 8 mm 10 → 30 V dc Cable IP67 30V Flush, Non Flush 16mm - 12mm 36.5mm -
RS Stock No. 842-8563
Mfr. Part No.CQ4-08EPO KU1
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£72.70
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Block - PNP-NC 8 mm 10 → 30 V dc Cable IP67 30V Flush, Non Flush 16mm - 12mm 36.5mm -
RS Stock No. 127-8120
Mfr. Part No.CM30-16BPP-EC1
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£90.70
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Barrel M30 x 1.5 PNP-NO/NC 16 mm 10 → 36 V dc M12 - 4 Pin IP68, IP69K 36V Flush 74mm - 30mm - -
RS Stock No. 127-8117
Mfr. Part No.CM18-08BPP-EC1
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£83.68
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Barrel M18 x 1 PNP-NO/NC 8 mm 10 → 36 V dc M12 - 4 Pin IP68, IP69K 36V Flush 85mm - 18mm - -
RS Stock No. 127-8121
Mfr. Part No.CM30-25NPP-EW1
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£79.94
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Barrel M30 x 1.5 PNP-NO/NC 25 mm 10 → 36 V dc Cable IP68, IP69K 36V Non Flush 81mm - 30mm - -
RS Stock No. 127-8118
Mfr. Part No.CM18-12NPP-EW1
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£78.07
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Barrel M18 x 1 PNP-NO/NC 12 mm 10 → 36 V dc Cable IP68, IP69K 36V Non Flush 86mm - 18mm - -
RS Stock No. 127-8122
Mfr. Part No.CM30-25NPP-EC1
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£81.81
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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. 127-8119
Mfr. Part No.CM18-12NPP-EC1
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£79.94
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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. 127-8116
Mfr. Part No.CM18-08BPP-EW1
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£74.74
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Barrel M18 x 1 PNP-NO/NC 8 mm 10 → 36 V dc Cable IP68, IP69K 36V Flush 86mm - 18mm - -