Final configuration is confirmed in the quotation.
Ultrasonic Water Level Sensor
Integrated non-contact liquid-level transmitter with selectable 5 to 30 m ranges and 4-20 mA or RS485 Modbus RTU output.
Start with the information you have. Exact model, interface and certificates are confirmed in writing before order.
Image details
Representative integrated ultrasonic level-transmitter visual derived from a reviewed exact-model reference and independently de-identified. It is not the final ordered-model photograph; range, blind zone, output, relay, power, process connection, display, markings and certificates are confirmed in the quotation.
Related solution: Water Monitoring
Where the hardware sits in the monitoring path
A planning view, not a fixed bundle. Signal type, protocol, power, network and the customer endpoint are confirmed before quotation.
Customer system
SCADA, BMS or customer-owned platform
Specifications
- Measurement
- Non-contact ultrasonic liquid level
- Range options
- 5 / 10 / 15 / 20 / 30 m
- Output options
- 2-wire or 4-wire 4-20 mA; 4-wire RS485 Modbus RTU
- Supply options
- 24 VDC or 220 VAC; 12 VDC on the RS485 configuration only
- Accuracy
- 0.5-1%
- Resolution
- ±3 mm or 0.1% FS, whichever is greater
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How the model is selected
The written quotation ties the site requirement to one reviewed hardware configuration.
Site requirement
Application, medium, mounting and environment
Hardware configuration
Signal, protocol, power and enclosure
Quote confirmation
Model, quantity, certificates and delivery
Remote integration context
Representative site context. Sensors, interfaces, enclosure, power and mounting are confirmed against the actual project before quotation.
Check the echo path before selecting ultrasonic level measurement
The reviewed specification supports an integrated non-contact transmitter, but site conditions determine whether the echo will remain stable.
- Choose a 5, 10, 15, 20 or 30 m configuration. The blind zone and threaded process connection change with the selected range.
- Mount the sensor axis perpendicular to the liquid surface and keep pipes, braces, ribs, ladders and mixing equipment outside the acoustic beam.
- Foam, bubbles, mist, steam, turbulence and strong temperature gradients can weaken or distort the return echo.
Show 3 more reviewed selection notes
Model-selection reference
Water & Utilities Hardware Catalog
Use this audited section to compare available hardware configurations. The representative website image is not an exact model photograph; the ordered configuration is confirmed in the quotation.
- Catalog section
- Radar and ultrasonic non-contact level transmitters
- SG-coded options
- 9
- PDF pages
- 7
Continue product selection
Compare adjacent hardware families for the same monitoring path. The final combination is checked against the project I/O, protocol, power and enclosure requirements.
How to choose
- Select a 5, 10, 15, 20 or 30 m range from the mounting height and maximum liquid level, then keep the configured blind zone above the highest surface.
- Mount the sensor perpendicular to the liquid surface and keep the acoustic beam clear of pipes, braces, ladders, ribs and mixing equipment.
- Provide foam, bubbles, mist, steam, turbulence, condensation, direct-sun and temperature-change conditions so ultrasonic suitability can be checked.
- Choose 2-wire or 4-wire 4-20 mA, or 4-wire RS485 Modbus RTU, together with the compatible power and upstream PLC, RTU or gateway.
Show 1 more selection checks
Compatible with
- PLC, RTU or data-acquisition inputs accepting 4-20 mA
- RS485 Modbus RTU masters on the selected communication configuration
- Tank, reservoir, well-head and open-channel mounting arrangements reviewed for a clear acoustic path
- 4G, NB-IoT or LoRaWAN telemetry through the selected upstream RTU or gateway
Typical package
- Integrated ultrasonic level transmitter with the selected measuring range
- Selected 4-20 mA or RS485 Modbus RTU output and matching power configuration
- Range-appropriate threaded connection, mounting bracket or stilling arrangement
- Upstream PLC, RTU or gateway plus cable, surge and enclosure accessories
- Installation check covering blind zone, beam clearance, surface conditions and acceptance readings
Applications
Use this integrated transmitter when liquid level can be measured from above without contact and the sensor has a clear acoustic path to the surface. The range, blind zone, process connection, output and power option are selected together. Foam, heavy vapour, turbulence, internal structures or strong temperature gradients must be reviewed before ultrasonic measurement is released for the site.
- Remote tank and reservoir level monitoring with a clear liquid surface
- Water-storage, irrigation and well-head installations where top mounting is practical
- Open-channel or river-level projects after the mounting geometry and echo path are reviewed
- PLC, SCADA or telemetry projects using 4-20 mA or RS485 Modbus RTU
What to include in your quote request
- Mounting height, maximum liquid level and required measuring range
- Tank / channel dimensions, medium and process connection
- Foam, bubbles, vapour, turbulence, temperature change and internal obstructions
- Required 4-20 mA or RS485 Modbus RTU output and connected PLC / RTU / gateway
- Available power, cable length, enclosure, quantity and project stage
Related selection guides
Related resources
LoRaWAN Water Tank and Wastewater Monitoring
Read guideRS485 Remote Monitoring Gateway
Read guideMore guides
Frequently asked questions
Which measuring ranges are available for this ultrasonic level transmitter?
The reviewed configurations are 5, 10, 15, 20 and 30 m. The blind zone, probe size and threaded process connection depend on the selected range, so the mounting height and maximum liquid level are confirmed before quotation.
Which outputs and power options are supported?
The reviewed output options are 2-wire 4-20 mA, 4-wire 4-20 mA and 4-wire RS485 Modbus RTU. The reviewed supply options are 24 VDC or 220 VAC, with 12 VDC available only on the RS485 configuration. The ordered combination is confirmed in the quotation.
When is ultrasonic level measurement a poor fit?
Heavy foam, bubbles, steam, mist, turbulent surfaces, internal obstructions or a mounting angle that is not perpendicular can produce weak or false echoes. Share the tank geometry and surface conditions so ultrasonic, radar or hydrostatic measurement can be compared before selection.
What should I provide when requesting a quote for the Ultrasonic Water Level Sensor?
Mounting height, maximum liquid level and required measuring range; Tank / channel dimensions, medium and process connection; Foam, bubbles, vapour, turbulence, temperature change and internal obstructions; Required 4-20 mA or RS485 Modbus RTU output and connected PLC / RTU / gateway
Where can I compare available model options?
Open the Water & Utilities Hardware Catalog linked on this page. It lists audited SG-coded selections; the ordered configuration is confirmed in the quotation.
Will it work with my existing system?
Compatibility is reviewed against your field signals, protocols and upstream platform. Typical pairings include PLC, RTU or data-acquisition inputs accepting 4-20 mA, RS485 Modbus RTU masters on the selected communication configuration, Tank, reservoir, well-head and open-channel mounting arrangements reviewed for a clear acoustic path.