Proximity Sensors

Proximity sensors are designed to detect the presence and proximity of an object in range without any physical contact, using sound, light, infrared or electromagnetic fields instead. You can learn more in our complete guide to proximity sensors.


Types of Proximity Sensor

  • Inductive -  An inductive sensor provides non-contact detection of metallic objects. Some sensors can target both ferrous and non-ferrous metals, while others specialise in sensing only one type

 

  • Ultrasonic -  Ultrasonic sensors work by emitting a short burst of ultrasonic sound at a specific frequency towards the target. When the target reflects the sound back to the sensor, the sensor measures the time it takes for the echo to return. The sensor will use the time it takes the soundwave to travel back to calculate the distance between the sensor and the object.

 

  • Capacitive - Capacitive sensors can detect metallic and non-metallic materials. They can detect and measure materials that are conductive or have a greater dielectric constant than air using an electrical field

 

  • Infrared - Infrared sensors measure light with a wavelength in the IR spectrum (>700nm). They are not good at detecting visible light. IR sensors can recognise light from either external or built-in light sources.




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Description Price Body Style Sensor Technology Thread Size Output Type Detection Range Terminal Type Series Supply Voltage Communication Protocol Length Width Depth Maximum DC Voltage Mounting Type
RS Stock No. 124-3734
Mfr. Part No.BES Q40KFU-PAC20A-S04G
BrandBALLUFF
$187.00
Each
units
Block Inductive - PNP 20 mm M12 - 4 Pin - 10 → 30 V dc - 62mm 40mm 40mm 30V Flush Mount
RS Stock No. 610-5684
Mfr. Part No.3RG6013-3AD00
$551.00
Each
units
Barrel Ultrasonic M30 x 1.5 PNP-NO 200 → 1300 mm M12 Connector - 12 → 30 V dc - 131mm - - 30V -
RS Stock No. 859-2875
Mfr. Part No.CD50CNF06NO
$82.09
Each
units
Block Capacitive - NPN 6 mm Cable - 10 → 30 V dc - 30mm 50mm 7mm 30V -
RS Stock No. 700-2876
Mfr. Part No.UM30-214112
BrandSick
$806.92
Each
units
Barrel Ultrasonic M30 x 1.5 PNP-NO/NC 350 → 3400 mm M12 - 5 Pin - 9 → 30 V dc - 102mm - - 30V -
RS Stock No. 784-6718
Mfr. Part No.UM30-213113
BrandSick
$806.92
Each
units
Barrel Ultrasonic M30 x 1.5 Analogue 2000 mm M12 - 5 Pin - 9 → 30 V dc - 84mm - - 30V -
RS Stock No. 785-8465
Mfr. Part No.E2E-S05S12-WC-C1 2M
BrandOmron
$129.21
Each
units
Barrel Inductive M5 x 0.5 NPN-NO 1.2 mm Cable - 10 → 30 V dc - 25.1mm - - 30V Flush Mount
RS Stock No. 814-1058
Mfr. Part No.BES 516-300-S249-S4-D
BrandBALLUFF
$458.93
Each
units
Barrel Inductive M12 x 1 PNP 1.5 mm M12 - 4 Pin - 10 → 30 V dc - 56mm - - 30V Flush Mount
RS Stock No. 249-2467
Mfr. Part No.NBB2-8GM40-E2-V1
$204.94
Each
units
Barrel Inductive M8 x 1 PNP-NO 2 mm M12 - 4 Pin - 10 → 30 V dc - 65mm - - 30V -
RS Stock No. 158-4896
Mfr. Part No.IM0010
$280.07
Each
units
Block Inductive - - 20 mm M20 Gland - 20 → 250 V ac/dc - 121mm 40mm 40mm 250V Non Flush
RS Stock No. 249-2568
Mfr. Part No.NBB10-30GM50-E2-V1
$110.64
Each
units
Barrel Inductive M30 x 1.5 PNP-NO 10 mm M12 - 4 Pin - 10 → 30 V dc - 65mm - - 30V Flush Mount
RS Stock No. 830-8147
Mfr. Part No.BI 8-M18-AP6X-H1141
BrandTurck
$217.35
Each
units
Barrel Inductive M12 x 1 PNP 8 mm M12 - 4 Pin - 10 → 30 V dc - 52mm - - 30V Flush Mount
RS Stock No. 800-7567
Mfr. Part No.NEB12-18GM50-E2-V1
$173.00
Each
units
Barrel Inductive M18 x 1 PNP 12 mm M12 - 4 Pin - 10 → 30 V dc - 69mm - - 30V Flush Mount
RS Stock No. 479-2573
Mfr. Part No.E2AS08KS02WPB12M
BrandOmron
$186.85
Each
units
Barrel Inductive M8 x 1 PNP-NO 2 mm Cable - 12 → 24 V dc - 40mm - - 32V Flush Mount
RS Stock No. 814-0282
Mfr. Part No.IE5338
$102.69
Each
units
Barrel Inductive M8 x 1 NPN, PNP 3 mm M8 - 3 Pin - 10 → 30 V dc - 40mm - - 30V Flush Mount
RS Stock No. 703-3729
Mfr. Part No.IME12-04BPSZCOS
BrandSick
$116.72
Each
units
Barrel Inductive M12 x 1 PNP-NO 4 mm M12 - 4 Pin - 10 → 30 V dc - 65mm 12mm - 30V Flush Mount
RS Stock No. 249-2366
Mfr. Part No.NBB5-18GM50-E2-V1
$98.45
Each
units
Barrel Inductive M18 x 1 PNP-NO 5 mm M12 - 4 Pin - 10 → 30 V dc - 65mm - - 30V Flush Mount
RS Stock No. 752-2071
Mfr. Part No.XS2M12KP340
$297.21
Each
units
Barrel Inductive M12 x 1 PNP/NPN 2.5 → 4 (Sd) mm, 4 (Sn) mm Pre-Wired - 12 → 24 V dc - 50mm - - 24V Non Flush
RS Stock No. 370-7489
Mfr. Part No.IFS204
$90.51
Each
units
Barrel Inductive M12 x 1 PNP-NO 4 mm M12 - 4 Pin - 10 → 36 V dc - 45mm - - 36V Flush Mount
RS Stock No. 805-2692
Mfr. Part No.E2B-M18KN16-WP-B2 2M
BrandOmron
$69.58
Each
units
Barrel Inductive M18 x 1 PNP Normally Close 16 mm Cable - 12 → 24 V dc - 36mm - - 30V Non Flush
RS Stock No. 227-107
Mfr. Part No.BI8U-M18-AP6X-H1141
BrandTurck
$209.32
Each
units
Barrel Inductive M18 x 1 PNP-NO 8 mm M12 - 4 Pin - 10 → 30 V dc - 52mm - - 30V Flush Mount