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. 237-0783
BrandRS PRO
£10.85
Each
Units
Barrel - - - 0.2 → 4 m PCB - 20 V - 7.1mm - - - -
RS Stock No. 166-9496
BrandRS PRO
£7.848
Each (In a Box of 540)
Units
Barrel Ultrasonic - - 0 → 300 mm PCB - 20 V - 7.1mm - - - -
RS Stock No. 701-8253
BrandRS PRO
£29.78
Each
Units
Barrel Inductive M12 x 1 PNP 4 mm Cable - 10 → 30 V dc - 44mm - - - 30V
RS Stock No. 166-9497
BrandRS PRO
£7.848
Each (In a Box of 540)
Units
Barrel Ultrasonic - - 0 → 300 mm PCB - 20 V - 7.1mm - - - -
RS Stock No. 237-0799
BrandRS PRO
£10.71
Each
Units
Barrel - - - 0.2 → 4 m PCB - 20 V - 7.1mm - - - -
RS Stock No. 208-162
BrandRS PRO
£60.41
Each
Units
Barrel Inductive M12 x 1 PNP 3 mm M12 - 4 Pin - 10 → 30 V dc - 52mm - - - 30V
RS Stock No. 208-156
BrandRS PRO
£60.41
Each
Units
Barrel Inductive M12 x 1 PNP 8 mm Cable - 10 → 30 V dc - 54mm - - - 30V
RS Stock No. 701-8250
BrandRS PRO
£29.78
Each
Units
Barrel Inductive M12 x 1 NPN 4 mm Cable - 10 → 30 V dc - 44mm - - - 30V
RS Stock No. 701-8225
BrandRS PRO
£29.78
Each
Units
Barrel Inductive M12 x 1 PNP 2 mm Cable - 10 → 30 V dc - 44mm - - - 30V
RS Stock No. 701-8229
BrandRS PRO
£29.78
Each
Units
Barrel Inductive M12 x 1 NPN 2 mm Cable - 10 → 30 V dc - 44mm - - - 30V
RS Stock No. 701-8257
BrandRS PRO
£35.48
Each
Units
Barrel Inductive M18 x 1 NPN 8 mm Cable - 10 → 30 V dc - 48mm - - - 30V
RS Stock No. 701-8213
BrandRS PRO
£35.48
Each
Units
Barrel Inductive M18 x 1 PNP 5 mm Cable - 10 → 30 V dc - 48mm - - - 30V
RS Stock No. 701-8231
BrandRS PRO
£25.99
Each
Units
Barrel Inductive M12 x 1 PNP 2 mm M12 - 4 Pin - 10 → 30 V dc - 65mm - - - 30V
RS Stock No. 701-8222
BrandRS PRO
£35.48
Each
Units
Barrel Inductive M18 x 1 NPN 5 mm Cable - 10 → 30 V dc - 48mm - - - 30V
RS Stock No. 208-257
BrandRS PRO
£60.41
Each
Units
Barrel Inductive M12 x 1 PNP 8 mm M12 - 4 Pin - 10 → 30 V dc - 52mm - - - 30V
RS Stock No. 208-235
BrandRS PRO
£67.15
Each
Units
Barrel Inductive M18 x 1 PNP 12 mm M12 - 4 Pin - 10 → 30 V dc - 52mm - - - 30V
RS Stock No. 701-8244
BrandRS PRO
£32.55
Each
Units
Barrel Inductive M18 x 1 PNP 5 mm M12 - 4 Pin - 10 → 30 V dc - 69mm - - - 30V
RS Stock No. 701-8216
BrandRS PRO
£40.04
Each
Units
Barrel Inductive M30 x 1.5 PNP 10 mm Cable - 10 → 30 V dc - 51mm - - - 30V
RS Stock No. 208-279
BrandRS PRO
£55.67
Each
Units
Block Inductive - PNP 40 mm M20 Gland - 10 → 30 V dc - 114mm 40mm 40mm - 30V
RS Stock No. 701-8241
BrandRS PRO
£34.00
Each
Units
Barrel Inductive M30 x 1.5 PNP 10 mm M12 - 4 Pin - 10 → 30 V dc - 71mm - - - 30V