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Ultrasonic Level Transmitters


Level and open channel flow measurement solutions are required throughout industrial water and wastewater treatment processes, including bulk storage, chemical feed, pump lift station, treatment-vessel, weir and flume applications. The principal level sensing technologies are ultrasonic, pressure, vibration and floats. Non-contact ultrasonic level sensors have steadily grown because they don't fail or require maintenance due to prolonged contact with corrosive and/or dirty liquids.


EchoTouch® US01 & US03 Reflective Ultrasonic Liquid Level Transmitter

The intrinsically safe reflective ultrasonic level transmitter provides continuous level measurement up to 9.8’ (3m) with a 4-20 mA analog signal output, and is configured via our WebCal software. The non-contact liquid level sensor features our proprietary Reflective Technology™ that delivers reliable level measurement in condensing environments. Select this sensor for small tanks with non-foaming or highly vaporous media such as chemicals, water, wastewater, and oil. Typical applications include day tank, IBC or drum, cooling tower, skid or machine, process tank and waste sumps.

New and Exclusive Product for Liquid Handling Equipment, Inc. Territory


EchoTouch® US06 & US12 Reflective Ultrasonic Liquid Level Transmitter

The intrinsically safe reflective ultrasonic level transmitter provides continuous level measurement up to 39.3’ (12m) with a 4-20 mA analog and HART digital signal output, and is configured via its integral pushbutton display module or WebCal software. The non-contact liquid level sensor features our proprietary Reflective Technology™ that delivers reliable level measurement in condensing environments. Select this sensor for bulk tanks with non-foaming or highly vaporous media such as chemicals, water, wastewater, and oil. Typical applications include bulk storage, neutralization tank, clarifier and waste sumps.

New and Exclusive Product for Liquid Handling Equipment, Inc. Territory


  • LU20-5061-IS EchoTouch Ultrasonic Level Transmitter 5.4m 18 2 G
  • LU20-5001-IS EchoTouch Ultrasonic Level Transmitter 5.4m 18 2 NPT
CSA approved intrinsically safe for use in hazardous locations, the two-wire ultrasonic transmitter provides non-contact level measurement up to 18' or 5.4m, and is ideally suited for challenging corrosive, slurry or waste liquids. Push button calibrated, the transmitter is typically selected for atmospheric bulk storage, day tank and waste sump applications located within a classified area. Media examples include diesel fuel and sulfuric acid.

  • LU23-00 EchoSonic II Ultrasonic Level Transmitter 5.5m 18.0 1 NPT Type 6P Cable o Fob
  • LU23-01 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 5.5M 18.0 1 NPT TYPE 6P CABLE FOB
  • LU23-10 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 5.5M 18.0 1 G TYPE 6P CABLE O FOB
  • LU23-11 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 5.5M 18.0 1 G TYPE 6P CABLE FOB
Offered in a type 6P enclosure with cable interface, the general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via our free WebCal software. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.

  • LU23-40 EchoSonic II Ultrasonic Level Transmitter 5.5m 18.0 1 NPT NEMA 4X 1 2 Conduit o Fob
  • LU23-41 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 5.5M 18.0 1 NPT NEMA 4X 1 2 CONDUIT FOB
  • LU23-50 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 5.5M 18.0 1 G NEMA 4X 1 2 CONDUIT O FOB
  • LU23-51 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 5.5M 18.0 1 G NEMA 4X 1 2 CONDUIT FOB
The general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via our free Webcal software. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.

  • LU27-00 EchoSonic II Ultrasonic Level Transmitter 3m 9.8 1 NPT Type 6P Cable o Fob
  • LU27-01 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 3M 9.8 1 NPT TYPE 6P CABLE FOB
  • LU27-10 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 3M 9.8 1 G TYPE 6P CABLE O FOB
  • LU27-11 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER. 3M 9.8 1 G TYPE 6P CABLE FOB
Offered in a type 6P enclosure with cable interface, the general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via our free WebCal software. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.

  • LU27-40 EchoSonic II Ultrasonic Level Transmitter 3m 9.8 1 NPT NEMA 4X 1 2 Conduit o Fob
  • LU27-41 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 3M 9.8 1 NPT NEMA 4X 1 2 CONDUIT FOB
  • LU27-50 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 3M 9.8 1 G NEMA 4X 1 2 CONDUIT O FOB
  • LU27-51 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 3M 9.8 1 G NEMA 4X 1 2 CONDUIT FOB
The general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via our free Webcal software. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.

  • LU28-00 EchoSonic II Ultrasonic LevelTransmitter 8m 26.2 2 NPT Type 6P Cable o Fob
  • LU28-01 ECHOSONIC II ULTRASONIC LEVELTRANSMITTER 8M 262 2 NPT TYPE 6P CABLE FOB
  • LU28-11 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 8M 26.2 2 G TYPE 6P CABLE FOB
Offered in a type 6P enclosure with cable interface, the general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via our free WebCal software. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.

  • LU28-40 EchoSonic II Ultrasonic Level Transmitter 8m 26.2 2 NPT NEMA 4X 1 2 Conduit o Fob
  • LU28-41 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 8M 26.2 2 NPT NEMA 4X 1 2 CONDUIT FOB
  • LU28-50 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 8M 26.2 2 G NEMA 4X 1 2 CONDUIT O FOB
  • LU28-51 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 8M 26.2 2 G NEMA 4X 1 2 CONDUIT FOB
The general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via our free Webcal software. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.

  • LU29-00 EchoSonic II Ultrasonic Level Transmitter 10m 32.8 2 NPT Type 6P Cable o Fob
  • LU29-01 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 10M 32.8 2 NPT TYPE 6 CABLE FOB
  • LU29-10 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 10M 32.8 2 G TYPE 6P CABLE O FOB
  • LU29-11 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 10M 32.8 2 G TYPE 6P CABLE FOB
Offered in a type 6P enclosure with cable interface, the general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via our free WebCal software. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.

  • LU29-40 EchoSonic II Ultrasonic Level Transmitter 10m 32.8 2 NPT NEMA 4X 1 2 Conduit o Fob
  • LU29-41 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 10M 32.8 2 NPT NEMA 4X 1 2 CONDUIT FOB
  • LU29-50 ECHOSONIC II ULTRASONIC LEVEL TRANSMITTER 10M 32.8 2 G NEMA 4X 1 2 CONDUIT O FOB
  • LU29-51 ECHOSONIC II ULTRASONIC LEVELTRANSMITTER 10M 32.8 2 G NEMA 4X 1 2 CONDUIT FOB
The general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via our free Webcal software. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.

EchoSafe® XP88-89 Ultrasonic Level Transmitter

FM approved for hazardous environments, the explosion proof ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via the integral push button display module. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is widely selected for bulk storage, day tank, lift station and process tank level applications located in a classified area.


EchoTouch® LU20 Ultrasonic Level Transmitter

CSA approved intrinsically safe for use in hazardous locations, the two-wire ultrasonic transmitter provides non-contact level measurement up to 18' or 5.4m, and is ideally suited for challenging corrosive, slurry or waste liquids. Push button calibrated, the transmitter is typically selected for atmospheric bulk storage, day tank and waste sump applications located within a classified area. Media examples include diesel fuel and sulfuric acid.


EchoTouch® LU30 Ultrasonic Level Transmitter

The general purpose 3-wire ultrasonic level transmitter provides continuous level measurement up to 24.5' (7.4m) with a 4-20 mA signal output, and is configured via the integral push button display module. The level sensor has one 10A relay which can be configured on a single set point (high level alarm or low level alarm) or latched on two set points for automatic fill or empty with fail-safe logic. This non-contact liquid level sensor is well suited for corrosive, ultrapure, sticky or dirty liquids, and is widely selected for bulk storage and day tank level applications.


  • LU30-5003 EchoTouch Ultrasonic Level Transmitter 7.4m 24.5 2 NPT 4-20 mA Sourcing
  • LU30-5003S ECHOTOUCH ULTRASONIC LEVEL TRANSMITTER 7.4M 24.5 2 NPT 4-20 MA SOURCING XX PIGTAIL
  • LU30-5004 ECHOTOUCH ULTRASONIC LEVEL TRANSMITTER 7.4M 24.5 2 NPT 4-20 MA SINKING
  • LU30-5004S ECHOTOUCH ULTRASONIC LEVEL TRANSMITTER 7.4M 24.5 2 NPT 4-20 MA SINKING XX PIGTAIL
  • LU30-5063 ECHOTOUCH ULTRASONIC LEVEL TRANSMITTER 7.4M 24.5 2 G 4-20 MA SOURCING
  • LU30-5063S ECHOTOUCH ULTRASONIC LEVEL TRANSMITTER 7.4M 24.5 2 G 4-20 MA SOURCING XX PIGTAIL
  • LU30-5064 ECHOTOUCH ULTRASONIC LEVEL TRANSMITTER 7.4M 24.5 2 G 4-20 MA SINKING
  • LU30-5064S ECHOTOUCH ULTRASONIC LEVEL TRANSMITTER 7.4M 24.5 2 G 4-20 MA SINKING XX PIGTAIL
The general purpose 3-wire ultrasonic level transmitter provides continuous level measurement up to 24.5' (7.4m) with a 4-20 mA signal output, and is configured via the integral push button display module. The level sensor has one 10A relay which can be configured on a single set point (high level alarm or low level alarm) or latched on two set points for automatic fill or empty with fail-safe logic. This non-contact liquid level sensor is well suited for corrosive, ultrapure, sticky or dirty liquids, and is widely selected for bulk storage and day tank level applications.

EchoSpan® LU80-84 Ultrasonic Level Transmitter

The general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via its integral push button display module. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.


EchoSonic® LU23-29 Ultrasonic Level Transmitter with Cable

Offered in a type 6P enclosure with cable interface, the general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via our free WebCal software. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.


EchoSonic® LU23-29 Ultrasonic Level Transmitter with Conduit

The general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via our free Webcal software. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.


EchoPod® DL14 Multi-Function Ultrasonic Level Transmitter

The general purpose ultrasonic level transmitter provides continuous level measurement up to 49.2" (1.25m) with a 4-20 mA signal output, and is configured via our free WebCal software. The embedded level controller can lower cost by replacing external control hardware. This non-contact liquid level sensor is ideally suited for corrosive, sticky or dirty liquids, and is widely selected for small day tank, skid, IBC, sump and process tank level applications.


  • LU80-5101 EchoSpan Ultrasonic Level Transmitter 3m 9.8 1 NPT
  • LU81-5101 ECHOSPAN ULTRASONIC LEVEL TRANSMITTER 5.5M 18.0 2 NPT
  • LU81-5161 ECHOSPAN ULTRASONIC LEVEL TRANSMITTER 5.5M 18.0 2 G
  • LU83-5101 ECHOSPAN ULTRASONIC LEVEL TRANSMITTER 8M 26.2 2 NPT
  • LU83-5161 ECHOSPAN ULTRASONIC LEVEL TRANSMITTER 8M 26.2 2 G
  • LU84-5101 ECHOSPAN ULTRASONIC LEVEL TRANSMITTER 10M 32.8 2 NPT
  • LU84-5161 ECHOSPAN ULTRASONIC LEVEL TRANSMITTER 10M 32.8 2 G
The general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via its integral push button display module. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications.

  • XP88-0 EchoSafe Ultrasonic Level Transmitter 7.5m 24.6
  • XP89-0 ECHOSAFE ULTRASONIC LEVEL TRANSMITTER 10M 32.8
FM approved for hazardous environments, the explosion proof ultrasonic level transmitter provides continuous level measurement up to 32.8' (10m) with a 4-20 mA signal output, and is configured via the integral push button display module. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is widely selected for bulk storage, day tank, lift station and process tank level applications located in a classified area.

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