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. 686-4746
Mfr. Part No.XT230A1PAL2
SGD138.66
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Barrel M30 x 1.5 PNP-NO 15 mm 10 → 30 V dc Cable - IP67 38V Non Flush 74.5mm - - -
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Mfr. Part No.XT230A1NAL2
SGD172.34
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Barrel M30 x 1.5 NPN-NO 15 mm 10 → 30 V dc Cable - IP67 38V Non Flush 74.5mm - - -
RS Stock No. 179-9950
Mfr. Part No.XT218A1FAL2
SGD209.52
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Barrel M18 x 1 NO 8 mm 24 → 240 V ac Cable - IP67 - Non Flush 78mm - 24mm -
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Mfr. Part No.XT130B1FAL2
SGD232.45
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Barrel M30 x 1.5 NO 10 mm 24 → 240 V ac Cable - IP67 - Flush 70mm - - -
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Mfr. Part No.XT130B1FBL2
SGD280.54
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Barrel M30 x 1.5 NC 10 mm 24 → 240 V ac Cable - IP67 - Flush 70mm - - -
RS Stock No. 686-4759
Mfr. Part No.XT218A1PAL2
SGD146.49
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Barrel M18 x 1 PNP-NO 8 mm 10 → 30 V dc Cable - IP67 38V Non Flush 78mm - - -
RS Stock No. 179-9949
Mfr. Part No.XT118B1PCM12
SGD162.07
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Barrel M18 x 1 PNP-NO/NC 5 mm 12 → 30 V dc M12 - 4 Pin - IP65 30V Flush 84mm - 24mm -