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. 896-7229
BrandRS PRO
$123.61
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Barrel M18 x 1 NPN-NO 5 mm 10 30 V dc Cable IP67 30V Flush 70mm - - - -
RS Stock No. 896-7263
BrandRS PRO
$130.55
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Barrel M30 x 1.5 PNP-NO 10 mm 10 → 30 V dc M12 - 4 Pin IP67 30V Flush 79mm - - - -
RS Stock No. 896-7235
BrandRS PRO
$123.61
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Barrel M18 x 1 PNP-NO 8 mm 10 30 V dc Cable IP67 30V Non Flush 70mm - - - -
RS Stock No. 896-7282
BrandRS PRO
$106.53
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Block - PNP-NO 8 mm 10 → 30 V dc Cable IP67 30V Non Flush 50mm - 30mm 7mm -
RS Stock No. 896-7273
BrandRS PRO
$101.34
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Block - PNP-NO 10 mm 10 → 30 V dc Cable IP67 30V Non Flush 50mm - 20mm 10mm -
RS Stock No. 184-5614
BrandRS PRO
$148.03
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Barrel M30 x 1.5 NO 10 mm 20 → 250 V ac M12 - 4 Pin IP67 - Flush 79mm - - - 250V
RS Stock No. 184-5569
BrandRS PRO
$112.50
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Block - NPN-NO 5 mm 10 → 30 V dc Cable IP67 30V Flush 30mm - 50mm 7mm -
RS Stock No. 184-5586
BrandRS PRO
$115.92
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Barrel M12 x 1 NPN-NO 4 mm 10 → 30 V dc Cable IP67 30V Non Flush 56mm - - - -
RS Stock No. 184-5581
BrandRS PRO
$137.56
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Barrel M12 x 1 NPN-NO 4 mm 10 → 30 V dc M12 - 4 Pin IP67 30V Non Flush 69mm - - - -
RS Stock No. 184-5619
BrandRS PRO
$147.93
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Barrel M30 x 1.5 PNP-NO/NC 10 mm 10 → 30 V dc M12 - 4 Pin IP67 30V Flush 79mm - - - -
RS Stock No. 184-5634
BrandRS PRO
$186.49
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Barrel M30 x 1.5 NO 10 mm 20 → 250 V ac/dc Cable IP67 250V Flush 62mm - - - 250V
RS Stock No. 184-5600
BrandRS PRO
$132.47
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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. 184-5615
BrandRS PRO
$138.00
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Barrel M30 x 1.5 NPN-NO/NC 10 mm 10 → 30 V dc Cable IP67 30V Flush 62mm - - - -
RS Stock No. 184-5570
BrandRS PRO
$112.50
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Block - PNP-NO 5 mm 10 → 30 V dc Cable IP67 30V Flush 30mm - 50mm 7mm -
RS Stock No. 184-5627
BrandRS PRO
$133.06
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Barrel M30 x 1.5 NO 10 mm 20 → 250 V ac Cable IP67 - Flush 62mm - - - 250V
RS Stock No. 896-7239
BrandRS PRO
$125.45
Each
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Barrel M18 x 1 PNP-NO 5 mm 10 30 V dc M12 - 4 Pin IP67 30V Flush 70mm - - - -
RS Stock No. 184-5601
BrandRS PRO
$132.47
Each
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Barrel M18 x 1 PNP-NO/NC 8 mm 10 → 30 V dc M12 - 4 Pin IP67 30V Non Flush 91.5mm - - - -
RS Stock No. 184-5574
BrandRS PRO
$233.10
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Block - PNP-NO - 10 → 30 V dc Cable IP67 30V Non Flush 43mm - 24mm 20mm -
RS Stock No. 896-7248
BrandRS PRO
$125.45
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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. 184-5625
BrandRS PRO
$138.00
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Barrel M30 x 1.5 PNP-NO/NC 15 mm 10 → 30 V dc Cable IP67 30V Non Flush 74mm - - - -