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. 184-5603
BrandRS PRO
£50.28
Each
Units
Barrel M18 x 1 NO 5 mm 20 → 250 V ac M12 - 4 Pin - IP67 - Flush 83.5mm - - -
RS Stock No. 184-5590
BrandRS PRO
£45.50
Each
Units
Barrel M12 x 1 PNP-NO 4 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Non Flush 69mm - - -
RS Stock No. 184-5608
BrandRS PRO
£50.28
Each
Units
Barrel M18 x 1 NO 8 mm 20 → 250 V ac M12 - 4 Pin - IP67 - Non Flush 91.5mm - - -
RS Stock No. 184-5641
BrandRS PRO
£54.17
Each
Units
Barrel M30 x 1.5 PNP-NO/NC 15 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Non Flush 91mm - - -
RS Stock No. 184-5621
BrandRS PRO
£58.11
Each
Units
Barrel M30 x 1.5 NO 15 mm 20 → 250 V ac M12 - 4 Pin - IP67 - Non Flush 91mm - - -
RS Stock No. 184-5627
BrandRS PRO
£52.23
Each
Units
Barrel M30 x 1.5 NO 10 mm 20 → 250 V ac Cable - IP67 - Flush 62mm - - -
RS Stock No. 184-5580
BrandRS PRO
£54.00
Each
Units
Barrel M12 x 1 NPN-NO 4 mm 10 → 30 V dc Cable - IP67 30V Non Flush 56mm - - -
RS Stock No. 146-6755
BrandRS PRO
£55.62
Each
Units
Barrel M12 x 1 PNP-NO 2 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Flush 65mm - - -
RS Stock No. 184-5625
BrandRS PRO
£54.17
Each
Units
Barrel M30 x 1.5 PNP-NO/NC 15 mm 10 → 30 V dc Cable - IP67 30V Non Flush 74mm - - -
RS Stock No. 184-5612
BrandRS PRO
£48.33
Each
Units
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. 184-5596
BrandRS PRO
£52.23
Each
Units
Barrel M18 x 1 PNP-NO/NC 5 mm 10 → 30 V dc Cable - IP67 30V Flush 70mm - - -
RS Stock No. 184-5586
BrandRS PRO
£45.50
Each
Units
Barrel M12 x 1 NPN-NO 4 mm 10 → 30 V dc Cable - IP67 30V Non Flush 56mm - - -
RS Stock No. 184-5631
BrandRS PRO
£54.17
Each
Units
Barrel M30 x 1.5 NPN-NO/NC 10 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Flush 79mm - - -
RS Stock No. 184-5617
BrandRS PRO
£54.17
Each
Units
Barrel M30 x 1.5 PNP-NO/NC 10 mm 10 → 30 V dc Cable - IP67 30V Flush 62mm - - -
RS Stock No. 146-6752
BrandRS PRO
£55.62
Each
Units
Barrel M12 x 1 PNP-NC 2 mm 10 → 30 V dc Cable - IP67 30V Flush 52mm - - -
RS Stock No. 184-5583
BrandRS PRO
£45.50
Each
Units
Barrel M12 x 1 NPN-NO 2 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Flush 65mm - - -
RS Stock No. 184-5614
BrandRS PRO
£58.11
Each
Units
Barrel M30 x 1.5 NO 10 mm 20 → 250 V ac M12 - 4 Pin - IP67 - Flush 79mm - - -
RS Stock No. 146-6758
BrandRS PRO
£53.80
Each
Units
Barrel M18 x 1 PNP-NO/NC 5 mm 10 → 30 V dc M12 - 4 Pin - IP67 30V Flush 83.5mm - - -
RS Stock No. 184-5571
BrandRS PRO
£45.00
Each
Units
Block - NPN-NO 8 mm 10 → 30 V dc Cable - IP67 30V Non Flush 30mm - 50mm 7mm
RS Stock No. 184-5635
BrandRS PRO
£21.71
Each
Units
Barrel M30 x 1.5 NO 10 mm 20 → 250 V ac/dc M12 - 4 Pin - IP67 250V Flush 79mm - - -
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