ToughSonic REMOTE 30 Ultrasonic Water Level Sensor - U30-REMOTE Series

• Optimum Range: 20 ft. (6.1 m)
• Max Range: 30 feet (9.1 m)
• Deadband: Typ. < 10 in. (254 mm)
• Temperature: -40 to 158 ℉ (-40 to 70℃)
• Data Output: Modbus, ASCII streaming, specials
• Humidity: 0 to 100% operating
• Type 316 stainless steel housing.
• Sealed epoxy potting for immersion protection.
• Rugged piezoelectric ultrasonic transducer.
• UV resistant, potted-in, 4-wire cable.

  • Model Number: U30-REMOTE Series
  • Data Sheet: Date Sheet File
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  • ToughSonic REMOTE 30 Ultrasonic Water Level Sensor
  • ToughSonic REMOTE 30 Ultrasonic Water Level Sensor
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Product Specification

ToughSonic REMOTE 30 Level Sensor
Level & Distance Data Collection for Remote Monitoring

The ToughSonic REMOTE 30 is a remote liquid level sensor with a maximum measurement range of 30 feet (9.1 meters).  This digital sensor is designed for accuracy and long-termultrasonic sensor stainless steel housing durability in remote monitoring applications.  With a stainless steel housing, full epoxy potting and NEMA-6P and IP68 ratings, it operates in the harshest climates.  It comes equipped with Senix Lightening Guard, a system that protects both power and communications circuits from repeated electrical transients of up to 7 kilovolts. The ToughSonic REMOTE 30 uses up to 20% less energy than the ToughSonic 30. It is fully configurable using SenixVIEW software.  This sensor is mounted on bridges, piers and tanks all over the world in critical remote level monitoring applications.

ToughSonic ultrasonic sensors are built Tough with:
• Type 316 stainless steel housing.
• Sealed epoxy potting for immersion protection.
• Ruggedized piezoelectric ultrasonic transducer.
• 75% better surge protection than IEC 61000-4-5.
• UV resistant, potted-in, 4-wire cable.

ToughSonic ultrasonic sensors are built Smart with:
• SenixVIEW configuration and analysis software controls more than 60 performance parameters and dozens of viewing, analysis and maintenance options.
• Addressable Modbus RTU.
• ASCII or phased high-speed, multi-sensor data collection for special applications.

U30-REMOTE Series Ultrasonic Water Level Sensor Some Example Applications:
• Irrigation control
• Open channel flow
• Flood monitoring
• Agricultural machine control
• Liquid tank networks
• SCADA* level sensing
  (*Supervisory Control and Data Acquisition)

U30-REMOTE Series Ultrasonic Water Level Sensor Specifications

Optimum Range * 

 20 ft. (6.1 m)

Max Range *

 30 feet (9.1 m)


 Typ. < 10 in. (254 mm)

Beam Width

 7.5° ±1°off axis @ -3db

Case Material

 316 stainless steel


 Stored in sensor's non-volatile memory


 -40 to 158 ℉ (-40 to 70 ℃)

Data Output

 Modbus, ASCII streaming, specials


 0 to 100% operating


 75 kHz, Ruggedized Piezoelectric


 Selectable temperature compensation



Data Resolution

 0.0068 in. (0.172 mm) per count


 SenixVIEW PC Software


 Nominal 0.2% of range @ constant temp. Affected by target, distance, environment

Update Rate

 10 Hz (100 ms), SenixVIEW adjustable; also affected by SenixVIEW filter selections

Modbus Protocol

 Modbus RTU, 9600 to 115200 baud, 8 data bits, 1 stop, no parity

ASCII Protocol

 Five ASCII distance characters followed by Carriage Return; for single sensor connections only

RS-485 Networks

 From 1 to 32 sensors can operate in an addressable multi-drop network

Ready time

 < 1 second after power application


 2m standard length, potted into sensor body, PUR with shield and drain, other lengths available


 CE, RoHS, Surge protection exceeds IEC 61000-4-5

Target Requirements


 Detects liquid surface, flat or curved objects. Surface must reflect ultrasound to sensor

Distance Ranges (*)

 Affected by size, shape, orientation of target (sound level reflected back to sensor), environment 

 Restrict use to Optimum Range when using over a wide range of environmental conditions


 Sensor should be oriented perpendicular to liquid surface for maximum reflection


 Unaffected by target color, light, transparency or other optical characteristics

U30-REMOTE Series Ultrasonic Water Level Sensor Connections




Power (**)


 10-30 VDC @ 55 mA max;Typical:35 mA @ 24 VDC



 Power & interface common

RS-232 out RS-485-


 Serial data connection (depends on model)

RS-232 in RS-485+


 Serial data connection (depends on model)

(**) Continuous measurements at default interval. Minimum 15 VDC input for optimum sensitivity.

U30-REMOTE Series Ultrasonic Water Level Sensor Part Numbers

Model Number



 Sensor with serial RS-232 interface (limited to single sensor connections)


 Sensor with serial RS-485 interface (allows addressable multi-sensor networks)

also offers interconnection, communications, mounting, and display components

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