Ultrasonic Proximity Sensors

Ultrasonic proximity sensors are a type of non-contact sensor. They use transmitted or reflected ultrasonic waves to detect whether an object or material is present or absent. They are reliable and versatile and can be used reliably in almost all conditions.

How do they work?
These sensors work by emitting a short bust 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.

What are they used for?
Typical applications for these ultrasonic sensors include stacking height control, irregular part detection within hoppers and feeder bowls, automotive assembly and loop control. Other suitable applications include thread or wire break detection, robotic sensing, detection of people for counting and liquid level control.

Things to consider
When deciding which sensor you should choose, there are a few things that you should bear in mind. Ultrasonic proximity sensors can be affected by noise interference and some will have a blind zone at close proximity. The surface angle of the target, and the roughness of the target surface can also affect the sensor. Some materials such as cloth or carpeting can absorb soundwaves rather than reflecting them. The speed of sound can be affected by temperature and humidity which can impact the resolution and accuracy of the sensor.

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Description Price Detection Range Output Type Body Style Thread Size Transducer Frequency Diameter Maximum AC Voltage Maximum DC Voltage Supply Voltage Terminal Type IP Rating Housing Material Reverse Polarity Protection Short Circuit Overload Protection
RS Stock No. 166-9496
BrandRS PRO
£6.769
Each (In a Box of 540)
Units
0 → 300 mm - Barrel - 40kHz 10 mm - - 20 V PCB - - - -
RS Stock No. 237-0783
BrandRS PRO
£7.37
Each
Units
0.2 → 4 m - Barrel - 40kHz 10 mm - - 20 V PCB - - - -
RS Stock No. 166-9497
BrandRS PRO
£6.769
Each (In a Box of 540)
Units
0 → 300 mm - Barrel - 40kHz 10 mm - - 20 V PCB - - - -
RS Stock No. 237-0799
BrandRS PRO
£7.34
Each
Units
0.2 → 4 m - Barrel - 40kHz 10 mm - - 20 V PCB - - - -
RS Stock No. 700-2889
Mfr. Part No.UM30-213112
BrandSick
£310.42
Each
Units
200 → 1300 mm PNP-NO/NC Barrel M30 x 1.5 200kHz 30 mm - 30V 9 → 30 V dc M12 - 5 Pin IP67 Nickel Plated Brass Yes Yes
RS Stock No. 610-5662
Mfr. Part No.3RG6012-3AD00-PF
£300.30
Each
Units
6 → 300 mm PNP-NO Barrel M30 x 1.5 400kHz 30 mm - 30V 12 → 30 V dc M12 Connector IP65 Nickel Plated Brass - -
RS Stock No. 610-5684
Mfr. Part No.3RG6013-3AD00
£300.30
Each
Units
200 → 1300 mm PNP-NO Barrel M30 x 1.5 200kHz 30 mm - 30V 12 → 30 V dc M12 Connector IP65 Nickel Plated Brass - -
RS Stock No. 700-2858
Mfr. Part No.UM30-213111
BrandSick
£204.77
Each
Units
200 → 1300 mm PNP-NO/NC Barrel M30 x 1.5 200kHz 30 mm - 30V 9 → 30 V dc M12 - 5 Pin IP67 Nickel Plated Brass Yes Yes
RS Stock No. 338-9930
Mfr. Part No.UNDK 30U6103/S14
BrandBaumer
£405.00
Each
Units
100 → 1000 mm Analogue Block - 240kHz - - 30V 15 → 30 V dc M12 Connector IP67 Die Cast Zinc Yes Yes
RS Stock No. 753-0511
Mfr. Part No.XX918A3C2M12
£124.00
Each
Units
50 → 500 mm Analogue Barrel M18 x 1 300kHz 18 mm - 24V 12 → 24 V dc M12 - 4 Pin IP67 Valox Yes Yes
RS Stock No. 506-2744
Mfr. Part No.3RG6232-3LS00-PF
£339.50
Each
Units
50 → 300 mm Analogue Barrel M18 x 1 400kHz 18 mm - 30V 12 → 30 V dc M12 - 4 Pin IP67 Nickel Plated Brass - -
RS Stock No. 612-2229
Mfr. Part No.XX518A3PAM12
£176.00
Each
Units
50 → 500 mm PNP-NO Barrel M18 x 1 300kHz 18 mm - 24V 12 → 24 V dc M12 - 4 Pin IP67 Plastic Yes Yes
RS Stock No. 700-2854
Mfr. Part No.UM30-212111
BrandSick
£204.77
Each
Units
60 → 350 mm PNP-NO/NC Barrel M30 x 1.5 400kHz 30 mm - 30V 9 → 30 V dc M12 - 5 Pin IP67 Nickel Plated Brass Yes Yes
RS Stock No. 612-2112
Mfr. Part No.XX930A3A2M12
£456.00
Each
Units
300 → 8000 mm Analogue Barrel M30 x 1.5 75kHz 30 mm - 24V 15 → 24 V dc M12 - 4 Pin IP65 Plastic Yes Yes
RS Stock No. 506-2766
Mfr. Part No.3RG6232-3AB00-PF
£238.50
Each
Units
5 → 30 mm PNP-NO Barrel M18 x 1 400kHz 18 mm - 30V 12 → 30 V dc M12 - 4 Pin IP67 Nickel Plated Brass - -
RS Stock No. 684-2904
Mfr. Part No.6GR6233-3AB00-PF
£140.20
Each
Units
50 → 700 mm PNP-NO Barrel M18 x 1 200kHz 18 mm - 30V 20 → 30 V dc M12 connector IP67 Nickel Plated Brass Yes Yes
RS Stock No. 258-4926
Mfr. Part No.UC500-30GM-IUR2-V15
£372.60
Each
Units
30 → 500 mm Analogue Barrel M30 x 1.5 380kHz 30 mm - 30V 10 → 30 V dc M12 - 5 Pin IP65 PBT - -
RS Stock No. 258-4932
Mfr. Part No.UC2000-30GM-IUR2-V15
£372.60
Each
Units
80 → 2000 mm Analogue Barrel M30 x 1.5 180kHz 30 mm - 30V 10 → 30 V dc M12 - 5 Pin IP65 PBT - Yes
RS Stock No. 742-0928
Mfr. Part No.XX930A2A2M12
£276.00
Each
Units
100 → 2000 mm Analogue Barrel M30 x 1.5 - - - - - M12 Connector IP65 Plastic Yes -
RS Stock No. 674-2038
Mfr. Part No.XUVU06M3KSNM8
£285.00
Each
Units
0 → 3 mm PNP/NPN-2NO/NC Block - - - - 30V 10 → 30 V dc M8 - 4 Pin IP65 Metal Yes Yes
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