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. 237-0783
BrandRS PRO
PHP509.77
Each
units
0.2 → 4 m - Barrel - 40kHz 10 mm - - 20 V PCB - - - -
RS Stock No. 166-9496
BrandRS PRO
PHP546.663
Each (In a Box of 540)
units
0 → 300 mm - Barrel - 40kHz 10 mm - - 20 V PCB - - - -
RS Stock No. 166-9497
BrandRS PRO
PHP546.663
Each (In a Box of 540)
units
0 → 300 mm - Barrel - 40kHz 10 mm - - 20 V PCB - - - -
RS Stock No. 237-0799
BrandRS PRO
PHP513.49
Each
units
0.2 → 4 m - Barrel - 40kHz 10 mm - - 20 V PCB - - - -
RS Stock No. 612-2229
Mfr. Part No.XX518A3PAM12
PHP10,148.73
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. 753-0511
Mfr. Part No.XX918A3C2M12
PHP7,921.56
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. 258-4932
Mfr. Part No.UC2000-30GM-IUR2-V15
PHP26,366.01
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. 458-5561
Mfr. Part No.UB500-F42S-I-V15
PHP12,449.49
Each
units
30 → 500 mm Analogue Block - 390kHz - - 30V 10 → 30 V dc M12 - 5 Pin IP54 ABS - -
RS Stock No. 458-5173
Mfr. Part No.UB500-F42S-E6-V15
PHP11,444.08
Each
units
30 → 500 mm PNP-2NO/NC Block - 390kHz - - 30V 10 → 30 V dc M12 - 5 Pin IP54 ABS - Yes
RS Stock No. 764-0620
Mfr. Part No.XXV18B1NAL10
PHP6,355.93
Each
units
3 → 50 mm NPN-NO Barrel M18 x 1 360kHz 18 mm - 36V 12 → 24 V dc Cable IP67 Brass Yes Yes
RS Stock No. 510-3693
Mfr. Part No.UB2000-F54-I-V15
PHP17,360.40
Each
units
80 → 2000 mm Analogue Block - 175kHz - - 30V 10 → 30 V dc M12 - 5 Pin IP65 ABS - -
RS Stock No. 610-5741
Mfr. Part No.3RG6112-3BF00-PF
PHP34,973.54
Each
units
60 → 300 mm Analogue, PNP-NO/NC Barrel M30 x 1.5 400kHz 30 mm - 30V 12 → 30 V dc M12 - 5 Pin IP65 Nickel Plated Brass - -
RS Stock No. 764-0608
Mfr. Part No.XXV18B1PBL2
PHP6,101.13
Each
units
3 → 50 mm PNP-NC Barrel M18 x 1 360kHz 18 mm - 36V 12 → 24 V dc Cable IP67 Brass Yes Yes
RS Stock No. 848-7216
Mfr. Part No.T30UXIAQ8
BrandBanner
PHP30,206.54
Each
units
100 → 1000 mm Analogue Block M30 x 1.5 - - - 30V 10 → 30 V dc M12 - 4 Pin IP67 PBT Yes Yes
RS Stock No. 280-6686
Mfr. Part No.UB4000-30GM-E5-V15
PHP16,740.19
Each
units
200 → 4000 mm PNP-NO Barrel M30 x 1.5 85kHz 40 mm - 30V 10 → 30 V dc M12 - 5 Pin IP65 Nickel Plated Brass - Yes
RS Stock No. 816-7489
Mfr. Part No.VM18PNO
PHP7,330.95
Each
units
50 → 500 mm PNP-NO Barrel - - 18 mm - 24V 12 → 24 V dc Cable IP67 PBT - -
RS Stock No. 610-5757
Mfr. Part No.3RG6113-3BF00
PHP36,642.28
Each
units
200 → 1300 mm Analogue, PNP-NO Barrel M30 x 1.5 200kHz 30 mm - 30V 12 → 30 V dc M12 - 5 Pin IP65 Nickel Plated Brass - -
RS Stock No. 510-3716
Mfr. Part No.UB300-18GM40-I-V1
PHP14,841.44
Each
units
30 → 300 mm Analogue Barrel M18 x 1 390kHz - - 30V 10 → 30 V dc 4-Pin M12 Connector IP67 Nickel Plated Brass - Yes
RS Stock No. 123-2441
Mfr. Part No.UGT202
PHP8,438.59
Each
units
80 → 1200 mm PNP NO/NC Barrel M18 x 1 200kHz - - 30V 10 → 30 V dc M12 - 4 Pin IP67 Epoxy Glass Ceramic, PBT, Polyamide Yes Yes
RS Stock No. 219-077
Mfr. Part No.UC12-12231
BrandSick
PHP20,188.75
Each
units
55 → 250 mm PNP-NO/NC Block - 500kHz - - 30V 10 → 30 V dc M12 - 4 Pin IP67 Die Cast Zinc Yes Yes
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