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 AC Voltage Maximum DC Voltage
RS Stock No. 338-9930
Mfr. Part No.UNDK 30U6103/S14
BrandBaumer
£434.00
Each
Units
Block Ultrasonic - Analogue 100 → 1000 mm M12 - 4 Pin - 15 → 30 V dc - 65mm 30mm 31.1mm - 30V
RS Stock No. 281-1442
Mfr. Part No.XSAV12801
£144.40
Each
Units
Barrel Inductive M30 x 1.5 - 10 mm Cable - 24 → 210 V dc, 24 → 240 V ac - 81mm - - - 58V
RS Stock No. 124-0306
Mfr. Part No.NBB20-U1-UU
£151.30
Each
Units
Block Inductive - - 20 mm M20 Gland - 20 → 253 V ac, 20 → 300 V dc - 118mm 40mm 40mm 253V 300V
RS Stock No. 158-4931
Mfr. Part No.IG5841
£68.67
Each
Units
Barrel Inductive M18 x 1 PNP 12 mm M12 - 4 Pin - 10 → 36 V dc - 72mm - - - 36V
RS Stock No. 335-6485
Mfr. Part No.IG5954
£55.26
Each
Units
Barrel Inductive M18 x 1 PNP, NPN 12 mm M12 - 4 Pin - 10 → 36 V dc - 72mm - - - 36V
RS Stock No. 479-2804
Mfr. Part No.E2AM18KN16M1B1
BrandOmron
£40.29
Each
Units
Barrel Inductive M18 x 1 PNP 16 mm M12 - 4 Pin - 12 → 24 V dc - 53mm - - - 32V
RS Stock No. 281-1436
Mfr. Part No.XSAV12373
£138.70
Each
Units
Barrel Inductive M30 x 1.5 PNP 10 mm Cable - 12 → 48 V dc - 81mm - - - 58V
RS Stock No. 512-4498
Mfr. Part No.XS512B1PAM12
£38.00
Each
Units
Barrel Inductive M12 x 1 PNP 2 mm M12 - 4 Pin - 10 → 36 V dc - 50mm - - - 36V
RS Stock No. 370-7489
Mfr. Part No.IFS204
£56.28
Each
Units
Barrel Inductive M12 x 1 PNP 4 mm M12 - 3 pin - 10 → 36 V dc - 45mm - - - 36V
RS Stock No. 444-3265
Mfr. Part No.XS612B1PAL2
£42.00
Each
Units
Barrel Inductive M12 x 1 PNP 4 mm Cable - 12 → 48 V dc - 53mm - - - 58V
RS Stock No. 479-2589
Mfr. Part No.E2AS08KS02WPC12M
BrandOmron
£36.77
Each
Units
Barrel Inductive M8 x 1 NPN 2 mm Cable - 12 → 24 V dc - 40mm - - - 32V
RS Stock No. 814-0282
Mfr. Part No.IE5338
£69.72
Each
Units
Barrel Inductive M8 x 1 PNP, NPN 3 mm M8 - 3 Pin - 10 → 30 V dc - 40mm - - - 30V
RS Stock No. 785-8468
Mfr. Part No.E2E-S05S12-WC-B1 2M
BrandOmron
£37.12
Each
Units
Barrel Inductive M5 x 0.5 PNP 1.2 mm Cable - 10 → 30 V dc - 25.1mm - - - 30V
RS Stock No. 831-3749
Mfr. Part No.NBN8-18GM50-E2-V1
£53.30
Each
Units
Barrel Inductive M18 x 1 PNP 8 mm M12 - 4 Pin - 10 → 30 V dc - 65mm - - - 30V
RS Stock No. 257-2535
Mfr. Part No.NCB50-FP-A2-P1
£155.80
Each
Units
Block Inductive - PNP 50 mm M20 Gland - 10 → 60 V dc - 84mm 84mm 40mm - 60V
RS Stock No. 703-3713
Mfr. Part No.IME12-04BPSZC0K
BrandSick
£21.76
Each
Units
Barrel Inductive M12 x 1 PNP 4 mm M12 - 4 Pin - 10 → 30 V dc - 46mm 12mm - - 30V
RS Stock No. 265-6087
Mfr. Part No.NBB2-8GM50-E2
£66.00
Each
Units
Barrel Inductive M8 x 1 PNP 2 mm Cable - 10 → 30 V dc - 50mm - - - 30V
RS Stock No. 444-3316
Mfr. Part No.XS630B1PAM12
£57.00
Each
Units
Barrel Inductive M30 x 1.5 PNP 15 mm M12 - 4 Pin - 12 → 48 V dc - 74mm - - - 58V
RS Stock No. 512-4533
Mfr. Part No.XS518B1PAM12
£40.00
Each
Units
Barrel Inductive M18 x 1 PNP 5 mm M12 - 4 Pin - 10 → 36 V dc - 50mm - - - 36V
RS Stock No. 289-8512
Mfr. Part No.NBB2-V3-E2
£40.80
Each
Units
Block Inductive - PNP 2 mm Cable - 10 → 30 V dc - 27.8mm 16mm 10mm - 30V