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 Communication Protocol Maximum AC Voltage Maximum DC Voltage Supply Voltage Terminal Type IP Rating Housing Material Reverse Polarity Protection
RS Stock No. 123-2442
Mfr. Part No.UGT203
$381.36
Each
units
150 → 1600 mm PNP 2NO/NC Barrel M18 x 1 230kHz - - - 30V 10 → 30 V dc M12 - 5 Pin IP67 Epoxy Glass Ceramic, PBT, Polyamide Yes
RS Stock No. 814-1112
Mfr. Part No.BUS M30M1-XC-60/600-S92K
BrandBALLUFF
$825.81
Each
units
600 → 8000 mm Analogue Barrel M30 x 1.5 80kHz - - - 30V 9 → 30 V dc M12 - 5 Pin IP67 Brass, PBT, TPU Yes
RS Stock No. 458-5101
Mfr. Part No.UB500-18GM75-I-V15
$469.00
Each
units
30 → 500 mm Analogue Barrel M18 x 1 380kHz 18 mm - - 30V 10 → 30 V dc M12 - 5 Pin IP65 Nickel Plated Brass -
RS Stock No. 258-4948
Mfr. Part No.UC4000-30GM-IUR2-V15
$697.00
Each
units
200 → 4000 mm Analogue Barrel M30 x 1.5 85kHz 40 mm - - 30V 10 → 30 V dc M12 - 5 Pin IP65 PBT -
RS Stock No. 399-5490
Mfr. Part No.UC6000-30GM-E6R2-V15
$616.00
Each
units
350 → 6000 mm PNP-2NO/NC Barrel M30 x 1.5 65kHz 73 mm - - 30V 10 → 30 V dc M12 - 5 Pin IP65 PBT -
RS Stock No. 612-2112
Mfr. Part No.XX930A3A2M12
$1,681.90
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
RS Stock No. 695-6858
Mfr. Part No.XX630A1KAM12
$780.60
Each
units
50 → 1000 mm 2x PNP/NPN-NO Barrel M30 x 1.5 200kHz 35 mm - - 24V 12 → 24 V dc M12 - 4 Pin IP67 Plastic Yes
RS Stock No. 123-2446
Mfr. Part No.UGT207
$381.36
Each
units
200 → 2200 mm Analogue, PNP-NO/NC Barrel M18 x 1 200kHz - - - 30V 10 → 30 V dc M12 - 5 Pin IP67 Epoxy Glass Ceramic, PBT, Polyamide Yes
RS Stock No. 530-794
Mfr. Part No.UNDK 10P 8914 S35A
BrandBaumer
$517.60
Each
units
10 → 200 mm PNP-NO/NC Block - 380kHz - - - 30V 12 → 30 V dc M8 Connector IP67 Plastic Yes
RS Stock No. 123-2462
Mfr. Part No.UGT513
$437.12
Each
units
200 → 2200 mm Analogue, PNP-NO/NC Barrel M18 x 1 200kHz - IO-LINK - 30V 10 → 30 V dc M12 - 5 Pin IP67 Epoxy Glass Ceramic, Polyamide, Stainless Steel Yes
RS Stock No. 280-6686
Mfr. Part No.UB4000-30GM-E5-V15
$405.00
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 -
RS Stock No. 218-917
Mfr. Part No.UC12-12235
BrandSick
$445.00
Each
units
55 → 250 mm NPN-NO/NC Block - 500kHz - - - 30V 10 → 30 V dc M12 - 4 Pin IP67 Die Cast Zinc Yes
RS Stock No. 506-2788
Mfr. Part No.3RG6343-3JK00-PF
$404.00
Each
units
200 → 1000 mm Analogue Block - 200kHz - - - 35V 10 → 35 V dc M12 Connector IP65 PBT -
RS Stock No. 203-7098
Mfr. Part No.UNDK 30P1703/S14
BrandBaumer
$880.16
Each
units
100 → 1000 mm PNP-NO Block - 240kHz - - - 30V 12 → 30 V dc M12 Connector IP67 Die Cast Zinc Yes
RS Stock No. 446-0226
Mfr. Part No.UNDK 20P6914/S35A
BrandBaumer
$659.58
Each
units
10 → 200 mm PNP-NO Block - 380kHz - - - 30V 12 → 30 V dc M8 Connector IP67 PET Yes
RS Stock No. 753-0536
Mfr. Part No.XX230A20PA00M12
$1,008.70
Each
units
100 → 2000 mm PNP NO/NC Barrel M30 x 1.5 200kHz 30 mm - - 24V 12 → 24 V dc M12 - 4 Pin IP67 Ultem Yes
RS Stock No. 753-0520
Mfr. Part No.XX518A3PAL2
$290.87
Each
units
50 → 500 mm PNP-NO Barrel M18 x 1 300kHz 18 mm - - 24V 12 → 24 V dc Pre-Wired IP67 Valox Yes
RS Stock No. 123-2448
Mfr. Part No.UGT500
$316.89
Each
units
40 → 300 mm PNP NO/NC Barrel M18 x 1 300kHz - - - 30V 10 → 30 V dc M12 - 4 Pin IP67 Epoxy Glass Ceramic, PBT, Polyamide Yes
RS Stock No. 123-2457
Mfr. Part No.UGT508
$361.81
Each
units
80 → 1200 mm Analogue, PNP-NO Barrel M18 x 1 200kHz - - - 30V 10 → 30 V dc M12 - 4 Pin IP67 Epoxy Glass Ceramic, Polyamide, Stainless Steel Yes
RS Stock No. 814-1115
Mfr. Part No.BUS M30M1-PPX-35/340-S92K
BrandBALLUFF
$432.45
Each
units
350 → 5000 mm PNP-NO/NC Barrel M30 x 1.5 120kHz - - - 30V 9 → 30 V dc M12 - 5 Pin IP67 Brass, PBT, TPU Yes
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