Ultrasonic Sensors
Sound bounces off clear plastic, black rubber, and shiny foil the same way, and dust or mist barely changes the reading. Eight distance series sorted by housing and range, plus a fork sensor for labels that optical sensors can't see.
9 series

U1KM Ultrasonic Sensors with Long Range
A miniature K-format ultrasonic sensor that detects objects up to 3 m away, including transparent, shiny and dark ones. Its MEMS transducer runs silently, and the IO-Link signal display can track up to five objects at once.
Key Specifications:
- Range: 50 to 3,000 mm
- Housing: 32 × 16 × 12 mm, IP62
- Outputs: 2 × PNP, 2 × NPN or PNP antivalent
- IO-Link 1.1, multiplex and sync modes

U1KT Miniature Ultrasonic Sensors
Miniature ultrasonic sensors for tight, close-range installations. They have a minimal blind spot and run in reflex, through-beam or synchronous mode. An optional soundpipe narrows the sonic cone so the sensor can measure through small openings.
Key Specifications:
- Range: 30 to 400 mm reflex, 800 mm through-beam
- Resolution: 0.5 mm
- Housing: 32 × 16 × 12 mm, IP68
- IO-Link 1.1; optional soundpipe for small openings

U1RT Ultrasonic Sensors in R Format
U1RT puts ultrasonic sensing in wenglor's compact R housing, which mounts with an M18 metal thread and needs little installation depth. It can be configured over IO-Link 1.1, or with no power applied over NFC from the wenglor app.
Key Specifications:
- Range: up to 1,200 mm reflex, 2,000 mm through-beam
- Housing: compact R format, M18 mount, IP67/IP68
- Outputs: 2 × PNP or NPN, plus error output
- Setup: IO-Link 1.1 or NFC from the app

U2GT Hygienic Stainless Steel Ultrasonic Sensors
All-metal ultrasonic sensors in a hermetically sealed 316L stainless steel housing with hygienic design. Built for pharmaceutical, food and chemical plants, in hygiene and washdown areas alike.
Key Specifications:
- Range: up to 1,300 mm reflex, 2,600 mm through-beam
- Housing: Ø20 mm 316L stainless, IP68/IP69K
- ECOLAB approved, FDA compliant, cUL listed
- Outputs: 2 × PNP or 4–20 mA; IO-Link 1.1

U18T Ultrasonic Sensors with M18 Thread
M18 threaded ultrasonic sensors in a stainless steel housing that install quickly without tools. They detect shiny, transparent, dark and even mirrored surfaces in reflex or through-beam mode.
Key Specifications:
- Range: up to 1,200 mm reflex, 2,400 mm through-beam
- Housing: M18 stainless steel, IP67
- Outputs: voltage, current or PNP; IO-Link 1.1
- Sync up to 32 sensors, multiplex up to 16

U30T Ultrasonic Sensors with M30 Thread
A short M30 ultrasonic sensor for level and detection tasks. It works as a reflex sensor or as an ultrasonic through-beam barrier and is set up over IO-Link.
Key Specifications:
- Reflex mode 100–1,900 mm, through-beam barrier 100–3,800 mm
- Short M30 threaded housing, IP67
- IO-Link 1.1 parameterization
- Synchronous mode for up to 32 sensors, multiplex mode for up to 16

UMF Ultrasonic Sensors with Display
M30 ultrasonic sensors with a built-in display for setting parameters and reading the distance value. Built for automation, conveyor and packaging applications.
Key Specifications:
- Range: 50 to 400 mm or 200 to 3,000 mm
- Housing: M30 stainless steel, built-in display
- Outputs: voltage + PNP switching
- Adjustable sonic cone; IO-Link

UMS Long-Range Ultrasonic Sensors
Cuboid ultrasonic sensors with ranges up to 6,000 mm in reflex mode, suited to fill-level monitoring of liquids, bulk solids and transparent objects. Settings are made on the integrated display or over IO-Link.
Key Specifications:
- Range: up to 6,000 mm (three range options)
- Housing: cuboid, IP67, rotatable M12 plug
- Outputs: current + PNP switching
- Display teach-in or IO-Link; adjustable cone

Fork Sensors for Label Detection
Ultrasonic fork sensors detect labels on any carrier material, whatever its color, transparency or surface. A label damps the ultrasound more than the bare carrier, and a gap of 2 mm between labels is enough to tell them apart. Setup is by teach-in key.
Key Specifications:
- Fork width: 6 mm (3 mm as spare part)
- Smallest label gap: 2 mm
- Belt speed: up to 250 m/min
- Response time: 0.25 ms; IP67
Not sure which one fits?
Give us the range, the mounting space, and whether it gets washed down. We'll match the series.