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. 814-1134
Mfr. Part No.BUS R06K1-PPX-12/070-S75G
BrandBALLUFF
HK$2,231.03
Each
units
120 → 1000 mm PNP-NO/NC Block - 300kHz - - - 30V 20 → 30 V dc M8 Connector IP67 Messing, PBT Yes
RS Stock No. 237-0799
BrandRS PRO
HK$94.32
Each
units
0.2 → 4 m - Barrel - 40kHz 10 mm - - - 20 V PCB - - -
RS Stock No. 166-9497
BrandRS PRO
HK$143.171
Each (In a Box of 540)
units
0 300 mm - Barrel - 40kHz 10 mm - - - 20 V PCB - - -
RS Stock No. 446-0232
Mfr. Part No.UNDK 30P1712/S14
BrandBaumer
HK$4,244.24
Each
units
60 → 400 mm PNP-NO Block - 400kHz - - - 30V 12 → 30 V dc M12 Connector IP67 Die Cast Zinc Yes
RS Stock No. 446-0226
Mfr. Part No.UNDK 20P6914/S35A
BrandBaumer
HK$3,294.72
Each
units
10 → 200 mm PNP-NO Block - 380kHz - - - 30V 12 → 30 V dc M8 Connector IP67 PET Yes
RS Stock No. 338-9930
Mfr. Part No.UNDK 30U6103/S14
BrandBaumer
HK$4,633.20
Each
units
100 → 1000 mm Analogue Block - 240kHz - - - 30V 15 → 30 V dc M12 Connector IP67 Die Cast Zinc Yes
RS Stock No. 612-2162
Mfr. Part No.XX930A3A1M12
HK$5,141.97
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. 814-1128
Mfr. Part No.BUS R06K1-XA-02/015-S75G
BrandBALLUFF
HK$2,553.18
Each
units
20 → 250 mm - Block - 380kHz - - - 30V 20 → 30 V dc M8 Connector IP67 Messing, PBT Yes
RS Stock No. 700-2867
Mfr. Part No.UM30-212112
BrandSick
HK$3,551.20
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
RS Stock No. 280-6686
Mfr. Part No.UB4000-30GM-E5-V15
HK$2,298.85
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. 258-4932
Mfr. Part No.UC2000-30GM-IUR2-V15
HK$4,756.48
Each
units
80 → 2000 mm Analogue Barrel M30 x 1.5 180kHz 30 mm - - 30V 10 → 30 V dc M12 - 5 Pin IP65 PBT -
RS Stock No. 612-2112
Mfr. Part No.XX930A3A2M12
HK$5,216.64
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. 458-5549
Mfr. Part No.UB4000-F42-E6-V15
HK$2,152.92
Each
units
200 → 4000 mm PNP-2NO/NC Block - 85kHz - - - 30V 10 → 30 V dc M12 - 5 Pin IP54 ABS -
RS Stock No. 280-6658
Mfr. Part No.UB2000-30GM-E5-V15
HK$2,068.96
Each
units
80 → 2000 mm PNP-NO/NC Barrel M30 x 1.5 180kHz 30 mm - - 30V 10 → 30 V dc M12 - 5 Pin IP65 Nickel Plated Brass -
RS Stock No. 203-7098
Mfr. Part No.UNDK 30P1703/S14
BrandBaumer
HK$4,404.40
Each
units
100 → 1000 mm PNP-NO Block - 240kHz - - - 30V 12 → 30 V dc M12 Connector IP67 Die Cast Zinc Yes
RS Stock No. 506-2750
Mfr. Part No.3RG6233-3AB00-PF
HK$2,401.80
Each
units
150 → 1000 mm PNP Barrel M18 x 1 200kHz 18 mm - - 30V 12 → 30 V dc 4-Pin M12 Connector IP67 Nickel Plated Brass -
RS Stock No. 612-2241
Mfr. Part No.XX512A2PAM8
HK$2,241.74
Each
units
6 100 mm PNP-NO Barrel M18 x 1 500kHz - - - 24V 12 24 V dc M8 - 3 Pin IP67 Plastic Yes
RS Stock No. 280-6636
Mfr. Part No.UB500-30GM-E5-V15
HK$2,068.96
Each
units
30 → 500 mm PNP-NO/NC Barrel M30 x 1.5 380kHz 30 mm - - 30V 10 → 30 V dc M12 - 5 Pin IP65 Nickel Plated Brass -
RS Stock No. 891-9384
Mfr. Part No.UC4000-30GM-2EP-IO-V15
HK$3,273.56
Each
units
200 → 4000 mm Push Pull Barrel - 85kHz 40 mm IO-LINK - 30V 10 → 30 V dc M12 - 5 Pin IP67 Polyamide, Stainless Steel, TPU Yes
RS Stock No. 764-0605
Mfr. Part No.XXV18B1PAM12
HK$803.33
Each
units
3 50 mm PNP-NO Barrel M18 x 1 360kHz 18 mm - - 36V 12 24 V dc M12 - 4 Pin IP67 Brass Yes
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